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subjuct to 后为什么加单三形式啊

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:2024/08/18 20:29:19
subjuct to 后为什么加单三形式啊
如题.书上说to为介词.后面不是应该接动词ING形式么.但是例句为do you realize that every time you take a step,the bones in your hip are subject to forces bewteen four and five times your body weight?还有一句because of the possibility of one passenger in a million boarding an aircraft with a weapon,the other 999999 passengers must subject themselves to searches and relays.用的是单三形式.
可是relay当延迟讲是动词啊。为什么用searches and relays呢
subjuct to 后为什么加单三形式啊
并不是单三,而是名词复数.