by the time 与before 有何分别?
问题描述：
by the time 与before 有何分别?
答
He had left Chine by the time when he was 40 years old. He had left Chine before he was 40 years old By the time I got outside,
答
by the time 是到某个特定的时刻。而before则是为某时间段之前。
答
by the time：是到...的时候的意思
before：是以前的意思