unless,and,or与but的区别

来源：学生作业帮编辑：百度作业网作业帮分类：英语作业时间：2024/05/05 23:08:05

unless,and,or与but的区别
尽量详细一点,谢谢

用but的时候.一般情况下,but后面的句子根前面有某种程度上的相反
ex:I want to go home,but I can't.
ex:The shoes are Nike brand,but they are fake
ex:This dress is fancy,but it doesn't fit me
unless就像是“除非” 需要除非.后面的句子让句子成立
ex:sports shoes were not shoes unless they were Nike or Reebok
－nike和reebok牌子的鞋子才算是运动鞋,其他根本就不算
－运动鞋根本就不能说是鞋子,“除非”它们是nike或者reebok的牌子
and用于肯定
OR用于疑问句

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