unless 与 as long as / provided that的分别(1)You can watch this film as long as / provided that you are not under 18.这题可否变成:you can watch this film unldess you are not under 18.unless 和 as long as / provided that 在一些意思看上去都可以使用的句子,有什麼可以分辨的吗? 英语
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【答案】 很高兴为你解答!
主要是意思的不同,unless=if ……not,“除非,如果不”；as long as=so long as,“只要”；provided that=supposing that=given that=if,“如果,假设,假如”.
You can watch this film as long as / provided that you are not under 18.
只要/如果你不是18岁以下,你就可以看这部电影.
这题不可变成: you can watch this film unless you are not under 18.
可以变成you can‘t watch this film unless you are under 18.
另外,unless 你打错了.
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追问： ??????????, you can watch this film unless you are not under 18. ???????18??, ????????????, ???????N??????? лл! 追答： unless本身就是否定的意义的词，引导的句子用肯定形式，一般用not……unless……翻译为“除非……才……”。