水凝胶伤口敷料:shall have done和would have done在虚拟语气句中是什么意思?

来源:百度文库 编辑:查人人中国名人网 时间:2024/05/12 07:48:20
shall have done和would have done在虚拟语气句中是什么意思?

应该是should have done吧~
should have done 是本应该要做,但没有做

would have done 是对将来的虚拟

shall have done应该做某事

would have done会做某事

shall have done和would have done在虚拟语气句中是“本该做但没做某事”

应做和会做