OG11 Page 161.
If Sam were twice as old as he is, he would be 40 years older than Jim. If Jim is 10 years younger than Sam, how old is Sam?
我对第一句话表示疑惑,中文是什么意思呢?
是Sam 是he的年龄的两倍吗?
答案解释是,he是Sam的年龄两倍
能讲一下此处的 用法?
谢谢
如果sam 是他自己现在年龄的两倍,
is 表示现在, if were 表示假设
这个he就是sam自己吧。
是个虚拟语气,就是SAM是现在年龄的两倍的话,他比JIM大40岁。
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