pretend to know nothing and hear nothing; pretend to be ignorant of sth
Related Translations:
聋: 形容词(听不见声音;听觉迟钝) deaf; hard of hearing 短语和例子装聋作哑 pretend to be deaf and dumb; 他聋了一只耳朵。 he is deaf of [in] one ear. 他完全聋了。 he is as deaf as a post [stone, door-post, door-nail, an adder]