1. The writer often obfuscates the real issues with petty details.
    那作家常以细枝末节来混淆实质问题.

2. Don´t bother me with such petty things.
    不要用这种小事情烦我。

3. And so she let herself be married to a petty clerk in the Ministry of Education.
    于是她不得不降身以求，嫁给了教育部的一个小职员。