A dog given a bone who doesn't come back for more.

Enjoy the moment while ye may for Old Time is still a-flying!

往昔一去不复返，所以尽庆地享受当下吧。

The days of economic surrender for the United States are over.

美国对经济屈服的日子一去不复返了。

She pours scorn on the suggestion that he may never return.

她鄙弃有人暗示他一去不复返之意。

As the moment is over, we call it the past.

时光一去不复返，我们称之为过去。

Those days are gone, at least for now.

那样的日子已经一去不复返了，起码眼下如此。

The days are gone when women worked for half pay.

妇女工作只拿男人一半工资的日子一去不复返了。

As Joseph Conrad wrote: "I remember my youth and the feeling that will never come back any more the feeling that I could last forever, outlast the sea, the earth, and all men."

正如约瑟夫康拉德（joseph conrad）写的那样：“我记得我的青春和那一去不复返的感觉那种认为自己能够永生、认为自己的生命将超越海洋、超越大地、超越所有人的感觉。”

Thanks to the Affordable Care Act, tens of millions of women are now guaranteed free preventive care like mammograms and contraceptive care, and the days when you could be charged more just for being a woman are over for good.

由于有了《平价医保法》，数千万女性现在得到了免费医疗保健保障，例如乳腺X射线扫描和避孕指导，那种因为你是女性接受治疗就要被多收费的日子已经一去不复返了。

The days of big central laboratories are over Bell Laboratories is the classic example as companies break up their scientific staff into smaller units and make more use of external providers.

大型中央实验室的时期已经一去不复返了贝尔实验室（bell laboratories）是一个经典的例子，现在企业把科研人员分为小单元，同时使用更多外部供应方。

Gone are the days of writing your own object-relational mapping ( ORM), logging, or testing framework.

手动编写对象关系映射（ORM）、日志或测试框架的时代已经一去不复返。

Sometimes it seems that time is flying.

有时，时间如流水，一去不复返。

Tourism in the region is rich in resources, the Hundred Regiments momentum magnificent monuments, Lion Mountain Park green and luxuriant forest, away from noise, back to nature;

区内旅游资源丰富，百团大战纪念碑气势雄伟，狮脑山森林公园郁郁葱葱、远离喧嚣、回归自然；

"The grand-looking Imperial Palace is Built delicately and gracefully, well representing the excellent tradition and the unique style of China's ancient architectural art."

故宫建筑精美，气势雄伟，集中体现了中国古代艺术的优秀传统和独特风格

As the first reinforced concrete dam in China, the Xinanjiang Dam is 105 meters high, also the first dam over 100 meters in China.

大坝坝型为国内首座混凝土宽缝重力坝，位于铜官峡谷上段两个大断层之间，岸坡陡峻，气势雄伟；最大坝高105米，是当时国内第一座百米以上高坝；

The great thunderous herd of thousand upon thousand of Perfectly Normal Beasts was sweeping in magnificent array across the Anhondo Plain.

无数头绝对正常兽排出气势雄伟的阵型，轰隆隆地横扫过安宏朵平原。

Yan-Pei Ming is known for his large and powerful, mainly monochrome black, white or red oil paintings.

严培明以其气势雄伟的巨幅油画而得名，他的油画以单黑、单白或单红色为主。

The building around the circus are rather nondescript, though some of them are large and quite imposing.

广场四周的建筑群颇为难以形容，虽然其中有些气势雄伟，十分壮观。

The whole hall is impressive with tidy structure and significant architectural features of the East.

整个大成殿气势雄伟，结构整齐，具有显著的东方建筑特色。

It was a muscular, hard-hitting documentary.

那是一部气势雄伟的记录片。

The breeze hollowed out undulations in the magnificent enormity of the chestnut-trees.

和风使高大华美的栗树丛此起彼伏，气势雄伟。