unless
/ənˈles/📚 1339 88 4四级六级考研托福中考高考You use unless to introduce the only circumstances in which an event you are mentioning will not take place or in which a statement you are making is not true. 除非; 如果不
conjunction [推进连词]除非，除非在…情况下；若非，如果不
We cannot understand disease unless we understand the person who has the disease.
除非我们了解有某种疾病的人，否则我们不会了解疾病。
preposition [方式和原因]除…之外；除…之外
I won't tell them—not unless you say I can.
我绝不告诉他们—除非你允许。
单词造句: