人类可以在摔倒前保持一、两秒钟。
她曾26次打破世界纪录、本赛季前保持6年不败。
She had broken the world record for 26 times, and kept be the winner before this season.
开始涂刷前保持表面没有游离的残留物是非常重要的。
A residue free surface is essential before coating application begins.
女性的则在绝经期前保持较低水平，之后升至同男性相当。
In women, cholesterol levels stay fairly low until menopause, after which they rise to about the same level as in men.
在完全愈合前保持手指伸直并用纱布互相分开非常重要。
It's important to keep the fingers straight and separated with bandages until the hand is completely healed.
意思就是：一位坚持要求在外长协商前保持匿名的美国官员说……
US official, who insisted on remaining on background ahead of minster's negotiations, says…
中国蝶泳神童吴鹏在与美国名将费尔普斯终极对决前保持轻松乐观的态度。
Chinese butterflyer Wu Peng is in an easy mood prior to a duel with Michael Phelps.
制片人表示，该工作人员在会议前保持其间距短，以便让问题和反馈的时间。
Producers are advised by the staff before the conference to keep their pitches short, to allow time for questions and feedback.
是这让我们在数千年前保持存活，而其依然在某个程度上存在于我们的基因中。
This is what kept us alive thousands of years ago and is still in our genetics to some degree.
该计划旨在鼓励农民们在拍卖前保持咖啡数量稳定，以防止供应过量导致价格下跌。
The plan encourages farmers to hold on to their coffee until the auction, preventing excess supply from pushing prices down.
现在是流行休闲，但要在你的客户前保持公司形象，还是不要用那种有卡通图案的塑料文件包。
Fig4. Casual style still conflicts with most of corporate images, so do not use the plastic briefcases with cartoon figures on them when meeting your clients.
穆雷在赛后表示：“我不能保证在今年结束前保持ATP排名第三的成绩，我还得多赢点比赛。
"I'm still not guaranteed to finish (the year) at No. 3; I'm still going to have to win some more matches, " Murray said.
如果机舱里有烟雾，把身体放低到烟雾与有毒气体的下面爬行，这样你能在你离开飞机前保持呼吸。
If there's smoke in the cabin, get low and crawl below the level of the smoke and toxic fumes, so you can breathe until you get out of the plane.
他说，作为写实文学已经变得比小说类题材更让人陌生，它已经让一个讽刺作家难以在“人类命运曲线”前保持领先地位。
He says that as nonfiction has gotten stranger than fiction, it's become harder for a satirist to stay ahead of "the curve of human weirdness."
穆斯林认为，自从14个世纪前《古兰经》被先知穆罕默德发现以来，它一直保持着最初的形式。
Muslims believe that Koran has maintained its original form since it was revealed to the Prophet Mohammad, 14 centuries ago.
在课程开始前，请保持安静！
第一步，为确保安全，当您购买和和打开每个食品前，应对您的粮食供应是保持跟踪。
The first step to ensuring the safety of your food supply is keeping track of when you purchased and opened each item.
在你被这繁杂的信息淹没前，最多能够与多少人保持这样的网上的联系。
How many people can you maintain that kind of contact with online before you get overwhelmed?
巴西领导人希望有一制度去奖励那些把毁林速度下降到1990年前的水平，并时刻保持着的国家。
Brazil's leaders want a system to reward whole countries for bringing their deforestation rates down to pre-1990 levels and keeping them there.
对相同数据对象的多次更改将仅记录一次，因此相应的旧值保持为最后一次更改前的值。
Multiple changes to the same object are only recorded once, so the old value remains set at the oldest unchanged value.
一些公司，比如麦肯锡，也通过与前雇员保持联系而获得了很多生意。
Some firms, such as McKinsey, win plenty of business by remaining close to former employees.
一封写得好的辞职信可以帮你和前上司保持良好的关系，这样更有利于你将来的进步。
A well-written resignation letter can help you maintain a positive relationship with your old employer, while paving the way for you to move on.
睡觉前至少几个小时请尽量避免，这样他们就不会让你保持清醒。
At least a few hours before bed, so that they do not keep you awake.
睡觉前至少几个小时请尽量避免，这样他们就不会让你保持清醒。
At least a few hours before bed, so that they do not keep you awake.
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