Reputation is a treasure that, once lost, can never be won back.
名誉如同珍宝，一旦失去，再难获得。
Laura once lost her wallet, and worried for days.
劳拉有一次丢了钱包，担心了好几天。
She once lost her wallet and walked to school each day.
她之前弄丢了钱包，于是每天步行上学。
She once lost her wallet and was afraid to tell her parents about it.
她曾经丢了她的钱包，而且害怕跟父母讲这件事。
快乐一旦消失，便是痛苦。
Once lost, to never get it back.
一旦失去的东西，就再也拿不回来了。
Wear earplugs, looking for once lost world.
戴上耳塞，寻找曾遗失的世界。
Textual analysis has once lost the boundary.
文本阐释一度迷失了边界。
Once lost, such a chance might never come again.
这样的机会一旦失去了。
I'm holding in my hand an earring you once lost.
我正将你遗落的耳环握在手里。
Ruth was exhausted and more than once lost her temper.
露丝被搞得筋疲力尽，不止一次地发脾气。
Originally I know happiness today, because once lost you.
原来我今天懂得幸福，是因为曾经失去过你。
I once lost, wandering, lost, but every time you rely on this.
我曾经一度迷茫过，徘徊过，失落过，但每次都有你这个依靠。
Old books are like old friends. Once lost, they can never be replaced.
旧书跟旧友一样，一旦失去就不能再得。
Was once lost always lost really true of chastity? She would ask herself.
她向自己发问，贞洁这个东西，一旦失去了就永远失去了吗？
Pigs don't have wings, but that's not because winged pigs once lost out to wingless ones.
猪没有翅膀，但这并不是因为曾经的有翅猪变成了无翅猪。
That's the point. He once lost his briefcase by asking a "blind man" to take care of it for him.
对啦，这才是要害。他曾丢过一个公文包，原因是让一个“盲人”帮他看包。
No alter allowed. The owner of the certificate should apply for reissuance once lost of damaged.
此证不准涂改，如又丢失或损坏，应及时向房地产管理机关申报补发。
This was the happiest period in Nietzsche's life and here a paradise once lost was briefly regained.
这是尼采一生当中最幸福的时光，使他重获了一个短暂的天堂。
With the faith being, one has power to do all what one wants, but once lost, one would lose all thoroughly, life included.
只要有信仰，一个人就有力量去做他想要的，但是，一旦失去了信仰，一个人就会失去所有，包括生命。
"I've had much worse starts to be honest -at Zenit we once lost three or four games in a row right at the beginning," he said.
老实说，我经历过更糟糕的开局——那是在泽尼特时，我们开局4场球输掉了3场。
Business environments, like ecosystems, can be fragile-and once lost, competitive advantage can be hard, if not impossible, to regain.
商业环境和生态环境一样很脆弱，一旦失去竞争优势，即使不是完全不可能，但也很难重新获得。
Business environments, like ecosystems, can be fragile-and once lost, competitive advantage can be hard, if not impossible, to regain.
商业环境和生态环境一样很脆弱，一旦失去竞争优势，即使不是完全不可能，但也很难重新获得。
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