I want it to be clean by then.

我希望到时候房间已干净了。

By then, it had been reconstituted as a feel-good exercise in consciousness-raising.

那时它已被重塑成了一种提高自我意识的良好做法。

But cats by then were coming indoors.

那时猫已开始住进屋里了。

I should be finished packing by then.

到那时候我应该已好行李了。

We should have our aims ready by then.

在那之前我们应该把目标确定好。

By then, the demand for animal products is expected to increase by 70 percent.

到那时，物产品的需求量预计将增长70%。

By then, I also had my own bread.

从那时起，我也有了自己的面包。

But by then it was too late.

那时已太晚了。

By then he was unconscious, and everyone else had gone to bed.

那时他已不省人事，其他人也都上床睡觉了。

5G technology may no longer may be out of this world by then.

到那个时候可能世界上都没有5G技术了。

So, naturally, we expect you to be here and ready to work by then.

所以，很自然地，我们希望你到时能在这里准备好工作。

By then, Rodham was viewed as someone with a bright political future.

到那时，希拉里已被认定，她的政治前途将一片光明。

By then, Sikes was very drunk, and Fagin got up to leave.

到这时，赛克斯已喝得酩酊大醉了。费金站起身来要走。

They'll have the black spot on me by then. They'll come for me.

他们会送黑券来的，他们会来找我的。

It will take another six to reschedule, and we'll both have graduated by then.

如果错过这次机会，我还要等六个月，那时我们都毕业了。

But by then, it might be too late for the environment.

是到那时，对环境来说可能已太晚了。

By then he was in high school.

那时他已上高中了。

By then, however, in many places the grass had already taken root.

然而到那时，很多地方的草已生了根。

But by then, it's often too late to do anything about it.

届时想要挽救往往已嫌太迟。

By then I was exhausted, and the heavy cab was too much for me.

到了那儿我已疲力尽了，车子实在是太重了。