Once upon a time, a king dressed up and went to a local village.
很久很久以前，有个国王盛装前往当地的一个村庄。
You go once up in the morning and then sometime the afternoon, and you go up in the evening and maybe twice in the evening.
你早上走一遍，到下午再走一遍，晚上又一遍，也许两遍。
Once up and running, oil-sands mines produce a steady flow of oil for 30 years or more, whereas the output of more conventional fields is much less predictable.
一旦建成运行，油沙矿在之后的30年或更长的时间里将持续不断的提供石油资源，而那些传统的油田的产量相对而言缺少可预见性。
In the cached-handle model, the application obtains the connection once up-front and caches a reference to it in an instance field, as illustrated in Listing 2.
在cached - handle模式中，应用程序在一开始是获得连接，然后在一个实例字段中缓存对它的引用，如清单2所示。
I've had it (up to here) with him —he's done it once too often.
我受够他了—他这一次太过分了。
Grandfather has promised, though, to let us come up with you once.
不过，爷爷答应过我们，让我们跟你一起上去一次。
He once plugged up the spout of a teapot and placed it on the fire.
曾有一次，他把茶壶嘴用东西堵住，然后把茶壶放在火炉上。
Brian started the engine and pulled away slowly, but picked up speed once he entered Oakwood Drive.
布赖恩发动引擎，慢慢驶离，但上了奥克伍德大道后就开始加速。
There is no reason why you couldn't live it up once in a while.
没有理由不让你偶尔尽情玩乐一下的。
We tend to meet up for lunch once a week.
我们往往会每周共进一次午餐。
You would think my own father would stick up for me once in a while.
你会认为我的亲生父亲偶尔也会支持我一下。
Keaton comes here once or twice a year to soak up the atmosphere.
基顿每年来这里一两次，感受这里的氛围。
Once he made up his mind to do something, there was no stopping him.
他一旦下定决心做什么事，没有什么可以阻止他。
Countries overwhelmed by the human tide of refugees want safe havens set up at once.
那些被难民潮席卷的国家想要立即建立安全区。
I dreamed up a plan to solve both problems at once.
我想出了一个可以立刻解决这两个问题的计划。
Once they get an idea into their heads, they never give up.
他们一旦接受了某个想法，就永远不会放弃。
Amy picked up the hairbrush and brushed her hair once more.
艾米拿起梳子，又梳了一遍头发。
I fill up the tank with gasoline about once a week.
大约每个星期我加满一箱汽油。
After the war, a new school building was put up where there had once been a theatre.
战争结束后，曾经是剧院的地方建起了一座新学校。
You must come up once and see them.
你必须上来一次，看看它们。
Why did Tsinghua University once give up the rule?
为什么清华大学曾经放弃了这项规定？
Momentum is said to be "conserved", that is, once you build it up, it has to go somewhere.
动量被认为是“守恒的”，也就是说，动量一旦被建立，就一定会转移到其他地方。
Here the brightly colored scenes that once decorated a mansion are being dug up.
在这里，曾经装饰过豪宅的鲜艳场景正在被挖掘出来。
Mistress Mary got up from the log at once.
玛丽小姐立刻从木头上站起来。
"Once we scale up, algorithms must be sensitive to tiny changes in identities and at the same time invariant to lighting, pose, age," Kemelmacher-Shlizerman said.
凯梅尔马赫·施勒泽曼说：“一旦扩大规模，算法必须对身份的细微变化敏感，同时不受光照、姿势和年龄影响。”
Once you have set up your fitness plan, don't make any great changes to it unless your doctor allows you to.
一旦你建立了你的健身计划，除非你的医生允许，否则不要做任何大的改变。
Once these plants use up their stored reserve or tap out the underground supply, they cease growing and start to die.
一旦这些植物耗尽它们储存的水或者用完地下水源，它们就会停止生长并开始死亡。
She sat up in bed, and was interested at once.
她在床上坐了起来，立刻产生了兴趣。
Get the boat out, and we'll paddle up there at once.
把船划出去，我们马上划过去。
Once I looked up "tipping" in a dictionary.
有一次我在字典里查了“tipping”这个词。
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