She looked at him and felt the instant spark of the connection she had only experienced once before.
她看着他，立刻感到了那以前只经历过一次的霎那间碰撞的火花。
Always read an exam all the way through at least once before you start to answer any questions.
在开始回答任何问题之前总是把试卷从头到尾读至少一遍。
Take action at once before it's too late!
马上采取行动，否则就太晚了！
I had met the fella once before.
我之前和这人见过一次。
I have only been to Guangzhou once before.
我以前只去过一次广州。
I moved house only once before I came to university.
读大学之前，我只搬过一次家。
They have it once before work and once in the afternoon.
他们在开始工作前和下午都各做一次。
A similar effect has been noted once before, in a different field.
一种相似的效应以前也曾在一个不同的领域被记录过。
Now she is watching a phenomenon she has seen only once before.
现在看到的现象她曾今只见过一次。
Before: execute this action once before the triggering action executes.
Before：该操作在触发操作执行之前执行。
Careful research has found the word once before, back in the 1300s in a poem.
如果进行一番仔细的研究，你还可以在那之前找到这个词：它早在14世纪就出现于一首诗里。
If you're lucky, your child will only cheat once before learning from their mistake.
如果你运气好，在孩子从错误中吸取教训之前孩子只会作弊一次。
He agreed to it once before, a year and a half ago, more, canceling at the last moment.
他曾经也这样做过，一年半之前，但最后的时刻又取消了决定。
If you've tried and failed at multiple changes at once before, you'll know what I mean.
如果你曾经试过在同一段时间去做多项改变，你就能明白我的意思了。
I've only ever spoken about this once before, and even then it was very much in the abstract.
这件事我以前只谈论过一次，而且那时也讲得非常抽象。
Today, World AIDS day, I want to re-introduce two young women whom you may have met once before.
今天是世界艾滋病日，我要再次介绍你们可能在此之前已见过的两位年轻妇女。
I had only once before done the part of Aleek Babu in a farce written by my brother Jyotirindra.
我之前只在我哥哥乔迪楞德拉撰写的一个滑稽剧中，演过阿力克先生的角色。
You can also specify :all, meaning RSpec will call the before block once before all of the tests.
您也可以指定 :all，表示RSpec 在执行所有测试之前只调用一次before代码块。
To do that, I knew I needed to go see my father-something I had done only once before in the past 20 years.
为此，我需要去看看我的父亲——在过去的20年里我只看过他一次。
I shouted once before a small hand clamped shut my mouth and then another pair of hands inserted a gag.
我才叫了一声，就有一只小手钳住我的嘴，另一双手塞了个东西进来。
I had felt this kind of passion only once before, when I first encountered the man who would be my husband.
这是除了对我丈夫以外，我第一次对另外个男人有这种感觉。
It is understood the Sunda variety has been filmed only once before - in Borneo's Tangkulap Forest Reserve last year.
巽他云豹以前只被拍摄到一次，那是去年在婆罗洲的唐库拉普（Tangkulap）森林保护区拍摄到的。
This has happened only once before since the late 1950s-in March 2003, which proved to be the start of a long rally.
这在1950年代晚期以来还是首次发生——上一次发生在2003年3月，紧随其后的是一波长期牛市。
Multinationals prevailed on Congress to approve a one-year tax holiday once before, as part of a jobs package in 2004.
2004年跨国企业曾向美国国会进行过游说，希望国会批准为期一年的税收减免，以此作为促进就业的一揽子计划的一部分。
This helps kick the can in the debt game, but does NOTHING to solve it. We know this because we've already seen this movie once before.
然而此举无法解决问题，只不过是缓兵之计明白这一点是因我们之前已见识过同样的把戏。
This month Mr Sarkozy's popularity rating fell to 26%, according to TNS Sofres, a pollster, a nadir it has touched only once before, in July.
本月，据TNSSofres（一个民意测验机构）统计显示，萨科奇的支持率已下跌至26%，这是仅在七月份出现过的低点。
Like any other modern device which takes loads of energy to make and only get used once before being dumped, disposable cameras are rather wasteful.
想其他花费大量能源却一次性的现代器械一样，拍立得相机是一种浪费。
Like any other modern device which takes loads of energy to make and only get used once before being dumped, disposable cameras are rather wasteful.
想其他花费大量能源却一次性的现代器械一样，拍立得相机是一种浪费。
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