by the book 完全按照规章制度办事，按照规定，照章办事 go by the book 依章办事 play by the book按规定来 do something by the book按规定做某事 run something by the book 按规定管理、运营 The manager do...

a closed book完全不了解，搞不懂 closed adj. 关闭的；合上的 与an open book意思相反 He is such a closed book, he never talks about himself.他这人很封闭，从来不谈论他自己。 I don’t know much ...

An open book （某物）容易理解；（某人）坦诚，没有秘密 open adj. 打开的 My life is an open book.我的生活很简单。 There’s no secret between us, she’s an open book to me.我们之间没有秘密，我对她是了如指掌。 ...

In the flesh 本人；亲自；（见到）真人 flesh 肉；肉体 You wouldn’t believe this, I met my idol Liu Dehua in the flesh the other day, he even hugged me.你肯定不会相信，前几天我见到了我的偶像刘德华本人了，他甚至还拥抱我了。 ...

A third wheel/ a fifth wheel 多余；电灯泡 third 第三个 fifth 第五个 wheel 车轮 I don’t think I’ll join you this time. Whenever I go out with you guys, I just feel like a third wheel.我这次就不跟你一块了，每...

Why the long face? 干嘛拉着个脸啊？怎么闷闷不乐的？ long face 长脸；闷闷不乐；不悦的脸色 What’s wrong? Why the long face? 怎么了？怎么闷闷不乐的？ Hey, Jack, why the long face? Is something bothering you?Jack,干嘛...

Go easy on someone/ something 手下留情；温和对待；节约使用 Go easy on him, he is my friend. 对他手下留情啊，他是我朋友。 The doctor told me to go easy on the chilies, but I just can’t.医生要我少吃辣椒，但是我做不到啊。 ...

Be like looking/searching for a needle in a haystack 如同大海捞针 like 像 look for/search for 寻找 needle 针 haystack 干草堆 There’re like, thousands of files piled up,it’ll be like looking for a need...

roll up one’s sleeves 撸起袖子，准备开始干活；准备大干一场 roll 卷 sleeve 袖子 We have a long day ahead, so let's roll up our sleeves and start! 今天将会是漫长的一天，所以让我们撸起袖子，开始干活吧。 I kn...

jump to conclusions 过早下结论，贸然断定 jump 跳 conclusion 结论 Let’s not jump to conclusions.咱们先别这么快就下结论。 I know you saw her with a man, but don't jump to conclusions, talk to her first. 我知道...

blow one’s mind 令某人极度震惊，感到意外；令人刮目相看 blow 爆炸 mind 思想，头脑 That was my first time to watch the show,it really blew my mind.那是我第一次看着个节目，太让我震惊了。 Prepare to ha...