谁能帮我翻译下这6个英语句子，谢谢了

He is a qualified mechanics, but he afterwards but have international trade. 2 in his spare time, he participated in the computer basic knowledge of training, but can't stick it out. Three principal after interview, selection of several excellent teaching in college graduates. 4 the contract for our company is very important, so write as specific as possible. My colleagues and I will talk about. 5. The boy suffered serious leukemia, must turn to accept further treatment. And when he heard that his father has gone out of business after school, from his tears rolling down her cheeks.