straight arrow

 老实人

►含义：

a very conventional, honest and ethical person who lacks flexibility.

传统、诚实、讲道德，不懂变通的人。

►例句：

He was often mocked by his peers for being a straight arrow who always followed the rules.

他经常被他的同事嘲笑，说他是一个老顽固，因为他总是循规蹈矩。

►对话：

A: You are really such a person who always stay out of trouble.

你真是一个不爱惹是生非的人。

B: You're right. I was very much a product of my environment. I was very traditional, a real straight arrow in lots of ways.

是的，我受环境影响很大，很多方面我其实很保守传统的。

►额外收获： 

1.stay out of trouble：不惹是生非

2.in lots of ways: 在很多方面

3.mock: vt.嘲笑

4.follow the rules: 循规蹈矩