Of course, by the time you're 80, there will be 65 more years of new books, so by then, you're dealing with 315 years of books, which allows you to read about 20 books from each year.

当然，等到你80岁的时候，又多出了65年的新书需要你去读，所以到那时，你得读完315年的书，平均下来，你可以从每年的书当中选出20本来读。

youdao

In his last few days the pain seemed to have stopped, but by then he was so far gone that it was no longer any comfort.

在他最后的几天里疼痛似乎已经停止，但那时他已病入膏肓，这已不再是什么安慰了。

《柯林斯英汉双解大词典》

We don't actually need it on Tuesday, but if it arrives by then, so much the better.

实际上我们星期二并不需要它，但如果那时能到就更好。

《牛津词典》

This time, he stayed until the end of April, by then he had so many furs that he had to leave his traps behind.

VOA: special.2010.06.26

These two oscillate back and forth so the moment of deprivation is often then balanced by a moment of imagination.

来回交替丧失的时刻,经常和想像的时刻,互相平衡。

耶鲁公开课 - 1945年后的美国小说课程节选

So, what happens with municipal privileges, towns that had municipal privileges, these are eroded and then virtually eliminated by powerful potentates.

地方特权怎么样了,拥有地方特权的城镇又发生了什么,绝对统治者削弱并最终废除了地方特权

耶鲁公开课 - 欧洲文明课程节选

The authorities have set a deadline of midnight on Monday local time for rioters to hand themselves over (if they do so by then apparently they can expect more lenient treatment).

ECONOMIST: Our correspondent reports from Tibet

It was snowing so fiercely by then that Mr. Box's wife, Betty, had convinced him to drive home to beat the storm.

WSJ: Snow Job: Ski Resorts Call On

I'll be so old by then.

BBC: SPORT | Athletics | Going for Gold: Ashia Hansen