中英成语俚语800对064：瞠目结舌 瞠目结舌 Stare tongue-tied. Stunned and speechless. To be dumb-founded.
eg：The accused was struck dumb by all those questions the judge asked.
同义词：目瞪口呆 Lose one's tongue. 反义词：巧舌如簧 Wag one's tongue.