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visit all places of Unless 意思是“如果不 …. 。 除非 …. 可以放在句子首或者句子的中間”有時可用 if …not 替換 . I will go unless he telephones . . Don’t leave the house unless I told you to . Don’t leave the house if I didn’t tell you to. I will go if he doesn’t telephone . you have a map, you will get lost easily. unless=‘if not’ Don’t leave the building unless you are told to do so. You won’t catch the early bus unless you get up earlier. ① 除非有人叫你這么做 ,否則不要離開大樓 . ② 如果你不早點起床的話 ,你就趕不上早班車 ① I will not go there unless I hear from him. ② I shall go there unless