As it will not return once gone.

青春一去不回头。

youdao

Three things in life that once gone, never come back Time, Opportunity, and Words.

生命中有三件事会一去不返，时间，机会和说出的话。

youdao

The old man's wits, once gone a-wool-gathering, rarely came back in a hurry.

那老人的头脑一犯起糊涂来，仓促之间是很难复原的。

youdao

"We have gone through turmoil. We have gone through civil war, and we have come out stronger, and we will do so once more."

VOA: standard.2010.05.22

He'd gone to Kentucky and drunk lots of Bourbon once, he carried an umbrella, that sort of middle class symbol of protection, and he is chased from the throne in 1848.

他去过肯塔基州,嗜好波旁威士忌,他有一顶保护伞,即他是中产阶级的象征,他在1848年被王室追捕

耶鲁公开课 - 1871年后的法国课程节选

Everytime I've gone to go see a show, except for maybe once or twice,

大概只有一两次例外，每次我去看一场演出时，

实惠的歌舞剧 - SpeakingMax英语口语达人

Once gone, only distant owl calls interrupt the sound of wind rushing through the treetops.

BBC: Poland's wild woods

Angolans have only once gone to the polls, in 1992.

ECONOMIST: Angola and its ruler

After its latest earnings report, where the company revealed margin expansion for the first time in two years, Wall Street has once again gone bullish.

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