请帮忙回答几个英语问题
1.This has not been helped by the fact that several of my co-workers are off sick at the moment.中的are off sick 怎么理解,为什么不直接用are sick.
2.I've got a couple of suggestions,which I'll get off to you today.中的get off to 怎么理解.
3.underlist和downcut是什么意思.