这种事儿他仅仅干过一次。
I met him only the once, and that was enough.
我只见过他一次，那就够了。
"Have they been to visit you yet?"—"Just the once, yeah."
“他们已经去看过你了吗？”— “来过，就那一次。”
I became out of breath and the once injured ankle hurt badly.
我上气不接下气，一度受伤的脚踝也疼得厉害。
The once powerful figures have also disappeared from the scene one after another.
那些烜赫一时的人物也一个个销声匿迹了。
Other crops are getting the once-over, as well.
其他作物也在接受改造。
The once-great American job machine badly needs repair.
美国这台 曾经伟大 的工作机器很不幸地需要大修了，甚至是在遭受大萧条打击之前。
Kasradze's wife Lena tries a few keys on the once-prized piano.
卡斯·拉泽的妻子丽娜弹了弹家人一直很珍重的钢琴的几个键。
But the once seemingly limitless real estate boom is going into reverse.
但这曾经看起来没有边界的房地产激增有了倒退之势。
Despite the once successful Save the Rhino project, rhinos are under siege.
尽管‘拯救犀牛’计划曾非常成功，然而目前犀牛正处于危难之中。
The water is fine once you're in!
你一旦下了水，就会觉得水里挺舒适。
Once the decision is reached, he can date and sign the sheet.
一旦做出决定，他就可以在那张表上签上日期和名字。
We didn't know how we would cope once the money had gone.
一旦钱花光了，我们就不知道该怎么办了。
The arch once stood alone at the entrance to the castle.
拱门曾经孤零零地矗立在城堡的入口处。
Once again the train was late.
火车又一次晚点了。
I'll run back over the procedure once again.
我将重新考虑这个程序。
It's easy, once you've got the knack.
你一旦掌握这个技能就容易了。
The village was once a pirates' lair.
这个村子曾一度是海盗藏匿之处。
The table had once graced a duke's drawing room.
这张桌子曾一度为公爵的起居室增色不少。
Once the container is full, it stays shut until you turn it clockwise.
该容器一旦满了就会保持关闭，直到你将其按顺时针方向旋转。
The aquifer which had once fed the wells was pronounced dry.
曾经给这些井提供水源的蓄水层已被宣告枯竭。
He was once the great white hope of British boxing.
他一度曾是英国拳击的希望所在。
The second injection should only have been given once the first drug had taken effect.
第2针本应只在第1针见效后才能注射。
She gave the apartment a once-over.
她匆匆扫视了一下那间公寓。
Unemployment is once again in the spotlight.
失业问题再次受到人们的关注。
The award-winning novelist often has three or four books on the go at once.
那位获奖小说家经常是三四部小说同时写的。
People usually draw the curtains once it gets dark.
天一黑，人们通常就会拉上窗帘。
People usually draw the curtains once it gets dark.
天一黑，人们通常就会拉上窗帘。
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