by the time是什么意思以及什么时候使用?

母语人士的回答
Rebecca
By the time是一个短语,用于表示某事 ( A ) 发生在其他事 ( B ) 发生时。示例: By the time I was 23, I had received my undergraduate degree. = At the time of turning or being 23, I had received my undergraduate degree. (我在 23 岁时获得了本科学位。) 示例: We'll be home by the time the food arrives. (食物到了我就到家了。)