be as silent as the grave be as close as an oyster keep one's tongue between one's teeth maintain a discreet silence
keep one's tongue between one's teeth
maintain a discreet silence
緘口不語用英文怎麼說
緘口無言用英文怎麼說
緘默用英文怎麼說
緘默不言用英文怎麼說
緘默不語用英文怎麼說
英語詞典收錄了最新的漢英詞典和英漢詞典，總共有200多萬個詞條，詞庫仍在不斷更新中。
