cross

across, through, cross

都可表示“横过”或“穿过”
across: 主要表示从某物的表面“横过”，涉及“面”的概念。

• my house is across the harbour，in the vicinity of the kowloon park．
  我的家在海港的对岸，九龙公园附近。
• they live across the central plaza.
  他们住在中央广场的对面。
• everyone shouts "kill it" when a rat is seen to run across the street．
  老鼠过街，人人喊打。

through: 则表示从某个空间“穿过”，涉及“体”的概念。
cross: across和cross在拼写上仅差一字之微，故很易混淆。它们的区别在于词性和使用场合有所不同。across是介词；cross是动词。

• he has crossed the border into another territory．
  他已越过边界进入别国的领土。
• many steel arch bridges cross the mississippi in its lower reaches．
  在密西西比河的下游许多拱形铁桥横跨河面。
• they have crossed over to japan．
  他们已东渡去日本了。

名词 cross:

1. a wooden structure consisting of an upright post with a transverse piece
2. a marking that consists of lines that cross each other
   同义词：crisscross, mark
3. a representation of the structure on which Jesus was crucified; used as an emblem of Christianity or in heraldry
4. any affliction that causes great suffering
   同义词：crown of thorns
5. an organism that is the offspring of genetically dissimilar parents or stock; especially offspring produced by breeding plants or animals of different varieties or breeds or species
   同义词：hybrid, crossbreed
6. (genetics) the act of mixing different species or varieties of animals or plants and thus to produce hybrids
   同义词：hybridization, hybridisation, crossbreeding, crossing, interbreeding, hybridizing

动词 cross:

1. travel across or pass over
   同义词：traverse, track, cover, pass over, get over, get across, cut through, cut across
2. meet at a point
   同义词：intersect
3. hinder or prevent (the efforts, plans, or desires) of
   同义词：thwart, queer, spoil, scotch, foil, frustrate, baffle, bilk
4. fold so as to resemble a cross
5. to cover or extend over an area or time period
   同义词：traverse, span, sweep
6. meet and pass
7. trace a line through or across
8. breed animals or plants using parents of different races and varieties
   同义词：crossbreed, hybridize, hybridise, interbreed

形容词 cross:

1. extending or lying across; in a crosswise direction; at right angles to the long axis
   同义词：transverse, transversal, thwartwise
2. perversely irritable
   同义词：crabbed, crabby, fussy, grouchy, grumpy, bad-tempered, ill-tempered

1. I hope I never cross her path again.
   但愿我永远不再遇见她。
2. She doesn't like to be crossed.
   她不喜欢有人跟她作对。
3. The chairman and I have crossed swords before over this issue.
   我和主席以前曾经对这问题进行过辩论。
4. She wore a small silver cross on a chain round her neck.
   她脖子上戴著项链，上面挂著个银的小十字架。
5. We all have our crosses, I suppose.
   我想，我们都有各自的难题。
6. He crossed me in everything.
   他事事阻挠我。
7. Be careful when you cross the road.
   过马路时要当心。
8. If you can't sign your name, make a cross instead.
   你如果不会签名，画一个十字也可以。

cross

n.（名词）

An upright post with a transverse piece near the top, on which condemned persons were executed in ancient times.
十字架：一根在接近顶端地方横梁的立柱，在古代用来处死被判有罪的人
Often Cross The upright post with a transverse piece upon which Jesus was crucified.
常作 Cross 十字架：耶稣被钉死在上面的十字架
A symbolic representation of the structure on which Jesus was crucified.
十字架上的图象：耶稣被钉死在上面的十字架的象征性图象
A crucifix.
十字架：作为基督教象征的十字架
A sign made by tracing the outline of a cross with the right hand upon the forehead and chest as a devotional act.
划十字：一种右手放在前额或胸前划十字以示虔诚的手势
A trial, affliction, or frustration.See Synonyms at burden
审判，磨难，挫折参见 burden
A medal, emblem, or insignia in the form of an upright post with a transverse piece near the top of it, or a modification thereto.
十字勋章：用接近顶部的地方横梁上的一根立柱的形状制成的勋章或徽章或由此加以装饰的饰物
A mark or pattern formed by the intersection of two lines, especially such a mark (X) used as a signature.
十字形记号：由两根交叉的线组成的记号或形状，尤指代替签字的这一符号（X）
A pipe fitting with four branches in upright and transverse form, used as a junction for intersecting pipes.
十字管：有四个呈横竖交叉分管的管子，用作贯穿各管子的连接物
Biology
【生物学】
A plant or animal produced by crossbreeding; a hybrid.
杂种：杂交而生成的植物或动物；杂种
The process of crossbreeding; hybridization.
杂交过程；杂交
One that combines the qualities of two other things:
混合物：融合另外两种物体性质的东西：
例句：
a novel that is a cross between romance and satire.
介于传奇和讽刺之间的小说

Slang A contest whose outcome has been dishonestly prearranged.
【俚语】 欺骗性比赛：胜负已经预先定好的不公正比赛
v.（动词）
crossed,cross.ing,cross.es
v.tr.（及物动词）
To go or extend across; pass from one side of to the other:
越过：穿过或越过；从一边越到另一边：
例句：
crossed the room to greet us; a bridge that crosses the bay.
穿过房间来向我们表示欢迎；穿越海湾的桥

To carry or conduct across something:
跨骑：把…运过或把…带过：
例句：
crossed the horses at the ford.
在浅滩骑马

To extend or pass through or over; intersect:
横跨，穿越；与…相交：
例句：
Elm Street crosses Oak Street.
榆树街和橡树街相交叉

To delete or eliminate by or as if by drawing a line through:
划掉：划横线或似乎用横线删除或去掉：
例句：
crossed tasks off her list as she did them.
在她的表格上划掉她已完成的任务

To make or put a line across:
划横线于：
例句：
Cross your t`s.
写t时划一条横线

To place crosswise one over the other:
交叉放置：把某物象十字形地放在另一物上：
例句：
cross one`s legs.
交叉着双腿

To make the sign of the cross upon or over as a sign of devotion.
划十字：在…上画十字以示虔诚
To encounter in passing:
与…相遇而过：
例句：
His path crossed mine.
他与我交错而行

Informal
【非正式用语】
To interfere with; thwart or obstruct:
干涉；妨碍，阻挠：
例句：
Don`t cross me.
不要同我作对

To ruin completely. Used withup :
彻底毁灭。与up 连用：
例句：
Their lack of cooperation crossed up the whole project.
他们缺乏合作精神把整个计划都搞砸了

Biology To crossbreed or cross-fertilize (plants or animals).
【生物学】 杂交：使（植物或动物）杂交繁育或异体受精
v.intr.（不及物动词）
To lie or pass across each other; intersect.
交错而行：互相交错放置或经过；交叉

To move or extend from one side to another:
横渡：从一方移动或穿越到另一方：
例句：
crossed through Canada en route to Alaska.
横穿加拿大去阿拉斯加

To make a crossing:
越境：
例句：
crossed into Germany from Switzerland.
越过瑞士边境进入德国

To change from one condition or loyalty to another. Used withover.
倒戈，投靠：从某一种状况或某一方转到另一种状态或另一方。与over 连用
To meet in or as if in passing:
相遇而过，错过：
例句：
Our letters must have crossed in the mail.
我们的信一定是在邮寄途中互相错开了

Biology To crossbreed or cross-fertilize.
【生物学】 杂交繁育，异体受精
adj.（形容词）
Lying or passing crosswise; intersecting:
交错放置的，交错经过的；交叉的：
例句：
a cross street.
交叉路段

Contrary or counter; opposing.
相反的，逆的；反对的
Showing ill humor; annoyed.
脾气坏的；发怒的
Involving interchange; reciprocal.
涉及交换的；相互的
Crossbred; hybrid.
杂交的；杂种的
adv.（副词）
Crosswise.
成十字形地
prep.（介词）
Across.
越过

<习惯用语>cross (someone`s) palm
To pay, tip, or bribe.
付钱，给小费，贿赂
cross swords
To quarrel or fight.
争吵，打架
来源：
Middle English cros
中古英语 cros
from Old English
源自 古英语
probably from Old Norse kross
可能源自 古斯堪的纳维亚语 kross
from Old Irish cros
源自 古爱尔兰语 cros
from Latin crux
源自 拉丁语 crux

【引伸】
cross.er
n.（名词）
cross.ly
adv.（副词）
cross.ness
n.（名词）