1. sit straight 坐直身子

2. think on v. 考虑；思量

eg And I think on the whole our record is pretty good with, I agree, exceptions. There was McCarthy, there was the Red Scare after World War I.

我也认为总体我们在这方面做得很好,只有少数几个例子，例如麦卡锡主义，以及一战过后的红色恐怖。

3. sworn brotherhood 八拜之交 金兰

4. give up 放弃；交出

5. I don’t care about that! 我才不在乎那个！