by now是什么意思?

母语人士的回答
Rebecca
By now可以用来表示现在已经发生了一些事情。示例: Jack should've been back from the shops by now. I wonder where he is. (杰克现在应该已经从购物回来了。我想知道他在哪里。) 示例: I thought I would've switched jobs by now, but I haven't. (我以为我现在应该换工作了,但我没有。) 示例: By now, she would've left already. (他现在应该已经离开了。)