impose

tax, impose, assess

这些动词均有“征税”之意。
tax: 普通用词，指用各种不同方法向个人或单位征收所得税、房地产税等各种税款。侧重实际征收金钱。
impose: 指在决定个别案件中的处罚或罚款，尤指政府征收某种税收的决定。
assess: 指一般情况下，征收房地产税、罚款或其它费用。

动词 impose:

1. compel to behave in a certain way
   同义词：enforce
2. impose something unpleasant
   同义词：inflict, bring down, visit
3. impose and collect
   同义词：levy

1. They are threatening to impose a blockade on the country.
   他们威胁说要对该国实行封锁。
2. He imposed his presence on us for the weekend.
   他硬要跟我们一起过周末。
3. The judge imposed a fine of ten dollars on him.
   法官判他罚款10 美元。
4. Don't impose yourself on people who don't want you.
   不要缠着不愿和你在一起的人。
5. Don't try to impose your wishes on us.
   不要试图把你的愿望强加给我们。

im.pose

v.（动词）
im.posed,im.pos.ing,im.pos.es
v.tr.（及物动词）
To establish or apply as compulsory; levy:
课收，征收：强制地建立或运用；征收：
例句：
impose a tax.
征税

To apply or make prevail by or as if by authority:
强制实行：用或好象用权威适用或推广：
例句：
impose a peace settlement.See Synonyms at dictate
强制推行和平解决参见 dictate

To obtrude or force (oneself, for example) on another or others.
强人所难：强迫（某人）接受或者把（如自己）强加于别人头上
Printing To arrange (type or plates) on an imposing stone.
【印刷术】 把…拼版：把（铅字或底片）排列到拼版台上
To offer or circulate fraudulently; pass off:
诈骗：欺骗性地提供或传播；冒充：
例句：
imposed a fraud on consumers.
把假货兜售给顾客

v.intr.（不及物动词）
To take unfair advantage:
占便宜：
例句：
You are always imposing on their generosity.
你总是在利用别人的慷慨而占便宜

来源：
Middle English imposen
中古英语 imposen
from Old French imposer
源自 古法语 imposer
alteration influenced by poser [to put, place] * see pose
受 poser的影响 [放置] *参见 pose
of Latin impônere [to place upon]
拉丁语 impônere的变化 [安置]
in- [on] * see in- 2
in- [在…上面] *参见 in-2
pônere [to place] * see apo-
pônere [放] *参见 apo-

【引伸】
impos.er
n.（名词）