0 except if:
You can't get a job unless you have experience (= you can only get a job if you have experience).
Unless you call me to say you're not coming, I'll see you at the theatre (= I will see you there if you do not call to say you are not coming).
1 used to say what will or will not happen if something else does not happen or is not true; except if:
She won’t go unless you go (= If you do not go, she will not go either, but if you go, she will go).
You can’t get a job unless you’ve got the experience (= You can only get a job if you have experience).
They threatened to kill him unless he did as they asked.
Students are not allowed to handle these chemicals unless they are under the supervision of a teacher.
中文繁体
除非, 除了在…的情況下…
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除非, 除了在…的情况下…
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a menos que, a no ser que…
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a não ser que…
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~で(が)ない限り…
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...dıkça/mıkça, ...madıkça/medikçe, ...mazsa/mezse…
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à moins que/de, sauf si, à moins que…
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llevat que…
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