1·I won't tell them—not unless you say I can.
我绝不告诉他们—除非你允许。
—— 《牛津词典》
2·I tend to forget things unless I mark them down.
我常常会忘事，除非我把它们记下来。
—— 《柯林斯英汉双解大词典》
3·That's the plan—unless anything untoward happens.
计划就这么定了—除非出现异常情况。
—— 《牛津词典》
4·Have a cup of tea—unless you'd prefer a cold drink?
喝杯茶吧—除非你喜欢冷饮？
—— 《牛津词典》
5·He resolutely refused to speak English unless forced to.
除非被逼迫，他坚决拒绝说英语。
—— 《柯林斯英汉双解大词典》