来源：学生作业帮 编辑：拍题作业网作业帮 分类：英语作业 时间：2024/04/30 01:52:14
only if在句子怎么用.如这句,怎么分析.
Encourage children to work out issues themselves,and to approach parents only if someone is in danger or the problem is very difficult to deal with.这里only if 怎么去理解,在句子的作用是什么.
只有当.前面讲干什么事,后面讲条件
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