(TTS發音) in and out
1 進進出出地
2 徹底地; 完全地
investigate something ~
徹底地調查某事物
1. coming in and going out often 進進出出；來來去去
There is no hope for Jim. He's been in and out of prison for ten years running. 吉姆沒希望了，他 進出監獄已連續 10年之久了。
He was very busy Saturday and was in and out all day. 星期六他 非常忙碌，終日進進出出忙個不 停。
He's always in and out of hospital. 他時常生病住院。
2. thoroughly；completely徹底地 We know each other in and out. 我 們彼此非常了解。
He understands his business in and out. 他對自己的業務非常熟悉。
