冒充的英文：
affect
imitating
imitation
pass as
pass for
pass off
sail under false colours

参考例句：

He escaped by passing himself off as a guard.
他冒充警卫逃走了.

Sail under false colors
"(用假冒的旗帜航行,引申为冒充,欺世盗名),"

an impostor; a fake; a fraud
冒充者

Something false; a sham.
赝品；冒充物

A Brazen impostor
厚颜无耻的冒充者

Those committing robbery posing as servicemen or policemen
冒充军警人员抢劫的

Nail under false color
冒充,打着别人的招牌骗人

He tried to pass himself off as a qualified doctor.
他试图冒充合格医生。

The man was accused of impersonating a officer.
那个男人被控冒充官员。

The gang posed as workermen and entered the building.
这帮匪徒冒充工人混进大楼。

affect是什么意思：
v. 影响；打动；（疾病等）侵袭
n. 感情，情感

Then production is not affected.
生产就不会受到影响。

He bears affection for her.
他对她有好感。

Affect suddenly with deep feeling.
因深深的感情突然打动。

imitating是什么意思：
v. [imitate] 的现在分词形式；模仿，仿效

To follow as a model or pattern;imitate.
模仿仿造…的样式或图案；模仿

Imitation is the sincerest form of flattery.
模仿是最真诚的奉承。

The workers imitate a diamond with crystal.
工人们用水晶仿造钻石。

imitation是什么意思：
n. 仿制品，仿造品，膺品；模仿，仿效
adj. 人造的；仿制的

To follow as a model or pattern;imitate.
模仿仿造…的样式或图案；模仿

Imitation is the sincerest form of flattery.
模仿是最真诚的奉承。

The workers imitate a diamond with crystal.
工人们用水晶仿造钻石。