一去不复返

We often hear people say that time and tide wait for no man.

我们经常听人说"时光一去不复返"

Knowledge plays an important role in your life now that you want to feed on yourselves.

少年是一去不复返的，等到精力衰时，要做学问也来不及了。

The word luxury suggests triviality and showing off, and the time for all that has gone, he says.

奢侈意味着无用的细节以及炫耀，如今，所有这些已一去不复返。

I came here in bare ,but in a blink i am gonna go in bare too,i just can not accept this ,why should i take this wald in vain,??

你聪明的，告诉我，我们的日子为什么一去不复返呢？

D'oh! The page you're looking for has gone walkabout. Sorry.

医生'oh ！你正在寻找的网页已一去不复返walkabout。

The question is whether this erosion is just part of an aberrational cycle - to be fully made up in the next upturn - or whether the business has slipped in a way that permanently reduces intrinsic business values.

意 味着下次景气翻扬会再回复，或是有可能一去不复返，企业的价值就此永远地流失掉。

Afterwar, as the rapid development of science and technology, on the times of complete liberal economy rise quickly of the position as soft resource and be gone forever.

战后，随着科学和技术的迅速发展，完全自由经济的时代上随着软资源地位的迅速上升而一去不复返。

But all the bloomy flush of life is fled.

而整个精力旺盛的青春已经一去不复返了。

Long gone are the days when the shop-assistants could go home with a clear conscience after having stood and served before the couter for 8 hours every day.

曾几何时店员们只要每天站满8个小时的柜台，就可以安安心心的回家。但这种时光已一去不复返了。

Gone are the days of drabby blacks.

已经一去不复返drabby黑人的日子。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐