close as an oyster 守口如瓶
as close as an oyster 守口如瓶
as close oyster
像封闭的牡蛎一样
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Mr. Smith may serve as a good secretary, for he is as close as an oyster.
史密斯先生可以当个好秘书，因为他守口如瓶。
youdao
The company owns well experienced special field inquire into a personnel , they keep secret extremely, concept strong , is as close as an oyster.
公司拥有经验丰富的专业调查人员，他们保密观念极强，守口如瓶。
应用推荐
模块上移
模块下移
不移动