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 have only been to Guangzhou once before.
我以前只去过一次广州。
Only once before have I seen such a sight.
这种光景我以前只见到过一次。
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。
Can I meet you once before we arrange the first lesson?
我可以在我们开始第一堂课之前先见个面吗？
He wasn't exactly a stranger - I had met him once before.
他不能算是个陌生人—以前我已见过他一次。
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。
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。
I had been here once before, as a backpacker in 1999, when few tourists came.
1999年，我曾作为一名背包客来过这里，当时游客很少。
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。
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。
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。
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。
Haw realized again, as he had once before, that what you are afraid of is never as bad as what you imagine.
唧唧还认识到，就像他曾经体会过的那样，你所害怕的东西根本没有你想像的那样糟糕。
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。
We had taken this road once before, a track seemingly with a grudge against vehicles of any sort. That was under the baking sun of midday.
我们曾走过这条路，一条任何车辆都难以碾过的小路。那次是行进在晌午烈日的炙烤下。
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。
She changed the sharks to friendly dolphins and visualized this new dream for five minutes twice a day-once in the morning, and once before bed.
她将鲨鱼变成友好的海豚，然后每天两次想象这一新梦五分钟时间——早上一次，睡前一次。
Like the elephants, how many of us spend a life with an idea that we cannot do something, only because we were not successful at it only once before?
正如这大象一样，我们之中多少人在“我做不到”的想法中度过一生，这仅仅只是因为我们曾经在这件事上失败过一次吗？
Crucially, the software just needs to watch an administrator perform this task once before being able to carry out the same job on computers running different software.
更重要的是，这个软件只需要观察管理员进行一次操作就可以在其他的运行着不同软件的电脑上重复这些操作。
Crucially, the software just needs to watch an administrator perform this task once before being able to carry out the same job on computers running different software.
更重要的是，这个软件只需要观察管理员进行一次操作就可以在其他的运行着不同软件的电脑上重复这些操作。
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