We are talking about the Neolithic period here, which was the time before stone tools began to be replaced by tools made of bronze and other metals.
我们这里在说的是新石器时代，是石器开始被青铜和其他金属制工具所取代之前的那个时代。
For the time before records began, we have only "proxy records" reconstructed largely from tree rings and ice cores, supplemented by a few incomplete written accounts.
在开始有记录之前，我们只有主要根据年轮和冰芯重建的“代理记录”，还有一些不完整的书面记录作为补充。
Their piece of bread was given to them, but it was still smaller than the time before.
他们拿到了面包，但还是比上次的还小。
They've failed most of the time before.
之前绝大多数时候，这些研究都失败了。
They relish the time before and after the committee work is done.
他们享受委员会工作完成之前和之后的时光。
We should have checked the time before we left.
我们本应该先核对一下时间再动身的。
I did the same thing as the time before, but with the new name.
我和以前那次做了同样的事情，但是用了新的名字。
Its birth could date back to the time before the Tang Dynasty.
它的诞生可以追溯到唐朝以前。
It is from the time before electricity, when people used candles for light.
源自还没有电力，人们使用蜡烛照明的那个年代。
While an actual nap is certainly beneficial, so is the time before you take one.
打盹当然有好处，但打盹之前的时间也有好处。
It was cold now in the time before daylight and he pushed against the wood to be warm.
眼下正当破晓前的时分，天气很冷，他把身子紧贴着木船舷来取暖。
In the time before books, children learned fairy tales by listening to them over and over again.
在有书籍之前的时代里，孩子们通过一再地倾听童话故事而得知它们。
The best days in one's life is the time before age twenty, referred to as "the golden age."
人生最好的时候，就是二十岁以前的时期，即所谓的「黄金时代」。
Jing said candidly the time before each launch was his tensest moment when he had butterflies in his stomach.
荆木春坦言，每一次发射前是他最为紧张的时刻。
I would turn eighteen in March 1944 and wanted to use the time before I was drafted for more musical training.
1944年3月我将满18岁，想在入伍前，好好利用这段时间做更多音乐训练。
The origin of human capital theory can be traced back to the time before the creation of modern economics.
人力资本理论的渊源向上可以追溯到具有现代意义的经济学创始之前。
Take the time before beginning a brand new project to look at what has worked in the past in similar projects.
在你打算开始完成一项全新的任务之前，不妨花点时间研究一下在过去类似的工作之中，哪些行为是起到了良好作用的。
Most of the time before 1820, China’s economy led the world, accounting for more than half of the world’s GDP.
1820年以前的大部分历史时期里，中国的经济实力居于世界首位，GDP超过世界总和的一半。
Rio had more "problems" than previous Olympics, but this happens practically all the time before the Olympics.
里约比之前的奥运是有更多的“问题”，但是基本上在每届奥运会之前都会有这样的事发生。
The Germans call the time from December 1st to December 24th “Adventszeit” which means the time before Christmas Eve.
从十二月一日至二十四日德国人称为“Adventszeit”，那是“圣诞夜前的等待”的意思。
During a rare phone conversation about a year and a half ago he tried to sell me his computer; the time before that, his shoes.
在一年半以前的一次电话里，他试着卖给我他的电脑，这之前他还想卖给我他的鞋子。
In the time before books, children learned such stories by listening to them over and over again, or by hearing them in songs.
在有书籍之前的时代里，孩子们通过一遍又一遍地聆听这样的故事或在歌曲中听到它们而得知这些故事。
Take the time before a project begins to get a clear and concrete outline of what your boss wants, when he wants it, and how he wants it done. "Take copious notes, " Bernstein says.
在一个项目开始前，一定要花时间弄清楚你的老板具体想要什么、希望它什么时候完成，以及希望它怎样完成。
In the real - time monitor system, it is often necessary to detect and analyze the operation and the fault state of the equipments by browsing the history data of the time before current time.
在实时监控系统中，经常需要浏览当前时间之前的历史数据来对设备运行和故障状态进行检测分析。
As a special kind of image in the time before Qin Dynasty, the image of assassins in the Biographies about the assassins in Shi Ji attracts people's attention and has been disputed for a long time.
《史记。刺客列传》中的刺客形象作为中国先秦史上的一个特殊群体，长期以来引人关注，也多有争议。
Although conditions for intubation may not be as good with this method, the patient will still be breathing if difficulties with intubation prolong the time before complete airway control is achieved.
尽管这样插管条件不如使用肌肉松弛剂好，但即使因插管困难推迟了达到完全气道控制的时间，病人也仍能维持呼吸。
The time before his arrival was spent in making preparations.
他到达之前的时间被用来做准备工作。
The time before and after each remote call (the timestamps can show how long the call took)
每个远程调用之前和之后的时间（时间戳可以显示该调用花了多长时间）
The time before and after each remote call (the timestamps can show how long the call took)
每个远程调用之前和之后的时间（时间戳可以显示该调用花了多长时间）
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