对经前综合症的研究是由社会许多名流引发的。
The study of PMS was brought about by many characters in society.
在你能够开始教别人你所知的东西前需要在社会中去实践你的知识。
You need to test your knowledge out in the world before you can start teaching others what you know.
我希望在70岁前能成为社会中有所作为的一份子。
亚洲社会在女性拒婚令前浮现危机。
Women are rejecting marriage in Asia. The social implications are serious.
对此，社会学家早在一百年前就已知晓。
10年前，很少有人听说过“社会企业家”这个字眼。
TEN years ago, few people had heard the term "social entrepreneur".
“社会媒体在某个地方那是8年前的事，”吉尔说。
"Location is where social media was eight years ago," says Gil.
从元谋人到公元前21世纪，是中国漫长的原始社会时期。
Yuanmou people from 21 BC, is China's long period of primitive society .
前一个过程是非常社会性的并且和环境相联系；
还有，这是你大学的最后一年了，享受大四吧，玩得开心点。在你独自进入现实社会打拼前，抓紧时间享受大学时光吧。
Finally, it's your senior year of college, enjoy it, have some fun, take some time to really enjoy college before you're orphan to the real world.
老师要求我们下星期五前缴交社会研究报告。
The teacher asked us to hand in the social studies report next Friday.
因此，在开口说话前，确信你所说的话合适到足以禁得起放到社会媒体上检验的地步。
So before you open your mouth to say something, make sure it's something you would be proud to post everywhere on social media.
对前的需要是如此强烈，以至于除了最原始的社会外每个社会都创造它 …
The need for money is so strong that almost every society beyond the most…
前几代的社会特征是犯罪较少。
There would be less of the guilt which characterized societies of earlier generations.
前几代的社会特征是犯罪较少。
There would be less of the guilt which characterized societies of earlier generations.
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