overhead

名词 overhead:

1. the expense of maintaining property (e.g., paying property taxes and utilities and insurance); it does not include depreciation or the cost of financing or income taxes
   同义词：operating expense, operating cost, budget items
2. (computer science) the processing time required by a device prior to the execution of a command
   同义词：command processing overhead time, command processing overhead, command overhead
3. (computer science) the disk space required for information that is not data but is used for location and timing
   同义词：disk overhead
4. a transparency for use with an overhead projector
   同义词：viewgraph
5. (nautical) the top surface of an enclosed space on a ship
6. a hard return hitting the tennis ball above your head
   同义词：smash

形容词 overhead:

1. located or originating from above

副词 overhead:

1. above your head; in the sky
2. above the head; over the head

1. An eagle circled high overhead.
   一只鹰在高空盘旋。
2. The trolley bus picks up current from an overhead wire.
   无轨电车的电能是通过架空线供给的。
3. An aeroplane droned overhead.
   一架飞机在头上嗡嗡飞过。
4. The hawk is hovering overhead.
   鹰在头顶上盘旋。
5. Overhead the stars were out.
   天上星星出来了。
6. The overhead costs are ridiculously expensive.
   日常开支太高了。
7. Seagulls were circling overhead.
   海鸥在头顶山盘旋。
8. Their office is in central Beijing, so their overhead is very high.
   他们的办事处设在北京市中心，所以他们的日常开支很大。

o.ver.head

adj.（形容词）
Located, functioning, or originating from above.
上面的，高架的：位于上部的，在上方运转的或来源于上部的
Of or relating to the operating expenses of a business.
（费用等）经常的，管理的：属于或关于企业运转经费的
n.（名词）
The operating expenses of a business, including the costs of rent, utilities, interior decoration, and taxes, exclusive of labor and materials.
管理费用，经常费用：企业的管理费用，包括租金、设备、内部装修及缴税等的花销，但不包括工资和购买原料的费用
Nautical The top surface in an enclosed space of a ship.
【航海】 顶板：密闭的船舱的顶层
Something, such as a light fixture, that is located above head height.
顶部装置：安装在头顶的固定装置，如电灯装置
Sports A stroke in a game, such as tennis or badminton, that is made with a hard downward motion from above the head.
【体育运动】 过顶扣球：如网球或羽毛球比赛中的一击，伴随着从头顶猛烈向下的动作
An overhead projector.
头顶投影机
adv.（副词）

Over or above the level of the head; high or higher up:
在头顶，在上面；向上或更向上：
例句：
look overhead.
向上看