You can call him up when you need help.这个句子有一处错误,请找出并改正
问题描述:
You can call him up when you need help.这个句子有一处错误,请找出并改正
答
need his help
答
call him up --> call him
答
You can call him up if you need help.
call him up是打电话给他的意思.
call sb up是固定用法
答
You can call him when you need help