unless用法

问题描述:

unless用法
you old computer doesn't work/you needn't buy a new one
用unless连接
另外,请问unless能否主句从句都为否定?

语法标注解释 unless英音:[ən'les]美音:[ʌn'lɛs] 以下结果由译典通提供词典解释连接词 conj.1.如果不,除非I won't apologize unless she apologizes first.除非她先道歉,否则我不道歉.介词 prep.1....