1. account for 为……负责；解释
The President and the President alone must account for his government's reforms.
总统必须为政府的改革负责而且是负全责E-(3hse@L4。

2. come up 出现
These sort of problems constantly come up, and it indicate that this new device need a newly regulation.
这些问题连续不断地出现，表明这台新仪器必须重新调试%a9Fl,)kX^NVF1Ysc。

3. involvement in 卷入；参与了
Tian stands trial today in her hometown for her involvement in the scandal.
今天，在她的家乡，田文华正在因卷入奶粉弊案接受审查DW6_7~;Mx4+qw。

4. business as usual 照常
One year on, the capital markets seem to be reverting to business as usual.
一年过去了，资本市场似乎正在回归常态@k@N=X!T!@9S955_3z。