1.no doubt 毫无疑问

例句:No doubt I had blundered again.
无疑，我又犯了一个愚蠢的错误。

2.think tank 智囊团

例句:I want to talk about what you really a good think tank should have some quality.
我想谈一下到底真正一个好的智库应该具有哪些素质。

3.moving back 返回；回迁

例句:I could see the branches of the trees moving back and forth.
我能看到树枝来回摇摆。

4.along with 随着

例句:He came along with some friends.
他和几个朋友一道来的。