| clam up vi phrasalphrasal verb, intransitive: Verb with adverb(s) or preposition(s), having special meaning and not taking direct object--for example, "make up" [=reconcile]: "After they fought, they made up." | slang (be unable to speak) | （被询问时）缄口不言
bèi xún wèn shí jiān kǒu bù yán |