1.(理屈词穷, 无话可说) be agape and tongue-tied; be at a loss for words; be stumped by ...; be unable to find anything to say; gaping and speechless; lose one's tongue; one's tongue glued itself to the roof of one's mouth.; one's tongue refused to move.; open the mouth and hold the tongue -- cannot answer; tongue-tied
短语和例子
他被问得张口结舌, 半天说不出话来。 he was stumped by the questions and remained tongue-tied for a good while. 罪证俱在, 他张口结舌, 无言以对。 brought before the evidence of his crimes, he was awe-struck and could say nothing in his defence.2.(惊异得说不出话来) gape with astonishment [wonder]; gaping at with wonder
钳口结舌 keep one's mouth shut; button up the lips; keep mum; keep silent; tongue-tied; be forced to keep silence
结舌 ankyloglossia; lingua frenata; tongue-tie; battarism; battarismus
张口 open mouth; rictus 张口便说 talk carelessly; talk out of place; 张口便咬 open mouth and bite; 张口就骂, 举手就打 (of a person) disposed to abuse, and even lay hands on the people at the slightest provocation