帮忙翻译下4个句子

1、他是一个合格的机械师，但他后来却搞起来国际贸易。
He was a qualified mechanic, but he later engaged in international trade.
2、校长经过面试，选择了几个优秀的大学毕业生从事教学工作。
After the interview, the principal chose several outstanding university graduates to engage in teaching work.

3、尺晌纯学校对不同家庭背景的谨渗学生没陵咐有区别对待。
The school does not discriminate between students of different family backgrounds.

4、我打赌我只要速度快一点，肯定会比他们先到目的地。
I bet I only need to move faster and I will definitely arrive first than they do.

望采纳慎消山备
1，He was a qualified mechanic, but he later got into international trade.
2，The principal passed the interview, and selected some excellent graduates for teaching.
3，宽唯知The school does not discriminate between students from different backgrounds.
4，I bet I can get to the destination faster than they do before.