首先，大多数行为是由不止一个基因控制的，而且直到最近遗传学家还没有方法来识别其涉及的多个基因。

In the first place, most behaviors are governed by more than one gene, and until recently geneticists had no method for identifying the multiple genes involved.

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奥格贝说，专家们正在研究如何控制这种害虫的危害，并防止其蔓延，直到现在，这种情况基本上还没有得到控制。

Ogbeh says experts are investigating how to control the pest's damage and prevent its spread, which has gone largely unchecked until now.

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直到20世纪中期，该系统还没有普遍地将女性纳入陪审团。

The system also failed to regularly include women on juries until the mid-20th century.

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So it's really neat to think that your counterparts 100 years ago right here at MIT could have been sitting in a class where they had Lewis as their lecturer, and he's putting forth these ideas -- these are actually his lecture notes, even though it wasn't even published yet, and giving this idea of Lewis structure, which is exactly what we keep using today in order to make a lot of these predictions.

因此会有很棒的感觉，当想一想一百年以前像你们一样,在这上学的同学可能正坐在教室里,听路易斯讲课，而他正在提出这些想法-,-而这些正是他的课堂讲义，尽管当时还没有发表，但已经给出了路易斯结构的思想，这正是我们直到今天都一直在用的,用它来做很多预测。

麻省理工公开课 - 化学原理课程节选