unless
conjunction uk/ənˈles/ us/ənˈles/
B1 除非;除了在…的情况下
except if
You can't get a job unless you have experience (= you can only get a job if you have experience). 除非有工作经验，否则你找不到工作。
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). 除非你打电话说你不来了，否则我就在剧院等你。
- More examples
- They threatened to kill him unless he did as they asked.
- Most wild animals won't attack unless they are provoked.
- I can't let you in unless you give the password.
- Students are not allowed to handle these chemicals unless they are under the supervision of a teacher.