before
US:/bɪˈfɔr/
UK:/bɪˈfɔː(r)/
adv.:
以前；过去；已经
conj.:
以免；不然；在…以前；到…为止
prep.:
在…以前；在…面前（或前面）；（次序或排列）在前面；表示面临或临近
网络:
之前；在……之前；在……前面
Examples
1.
It is possible that consumption growth might be modestly held back, but retail spending was already surging before the market rally began.
消费增长有可能稍微受到遏制，但零售支出在股市大涨之前就已经开始攀升了。
2.
Thus, the recommendation is to slow down all non-bottleneck operations before trying to speed the bottlenecks up.
因此，推荐做法是：在试图提升瓶颈速度之前，先放慢所有非瓶颈操作的速度。
3.
makes it easy to find a great restaurant by presenting a summary of user and professional reviews in a way that has never been done before.
通过搜索用户介绍的摘要和专业的评论，就可以方便的找到一家好的餐馆，这种方式以前从来没有被使用过。
4.
The inconceivable thing was that the spot was just the same with before but the bodies were gone without anything just like having wings.
令人不可思议是，现场毫无异样，尸体们就象生了翅膀一样无声无息的消失了。
5.
A user will tolerate only so much security-related (or other) overhead before he either dumps your product or figures out a workaround.
他转储您的产品或计算出一种解决方法之前，用户会容忍只有这么多安全相关（或其他）的开销。
6.
She walked into her boudoir, and before her mirror began to dress for a dinner to which she had been invited.
她走过她的闺房，对着镜子打扮着，预备应邀赴一个宴会。
7.
You might have to write for a few minutes before you really get into the groove.
你可能要写上几分钟才能真正地进入最佳状态。
8.
Elton decided to walk up to her place and put off by half - an -hour or so the important business which lay before him.
艾尔顿决定到她那里去，将摆在他面前的重要事情推迟半小时左右。
9.
Up to the present, we have had no news about Shiquan except the last one before he went to coal mine.
石泉去煤矿前来过一封信，至今没有他的消息。
10.
Others followed even before the whole string was wet. And I was able to collect and store a great deal of electricity into the condenser.
其他风筝也发生了类似情况，甚至是在那根放飞的绳子全部湿透之前。这时，我完全可以将大量的电收集并储存到电容器里面去。