为了上课不迟到,他7点钟就出发了用英语怎么说

in order to no late to school,he set off at 7:00

In order not to be late for school/class,he started out before 7.am.
出发”一词可以换个~

PS:楼上是不是又有谁用机器了啊~~

He left at 7:00 for not being late for school。

In order not to be late for school, he sets off at 7:00.

He set off at 7 for not be late for school

In order not to be late for school, he set off at 7 o'clock.