古典风景画是18世纪许多画家所喜欢用的题材。

Classical landscapes were a popular subject with many 18th century painters.

《牛津词典》

穿过伦敦的中心，沿着河岸也有许多画廊、市场、商店和活动，让你目不暇接。

Running through the heart of London, there are also many galleries, markets, shops and activities to keep you busy along its banks.

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莱昂纳多画了直升飞机。

Leonardo drew the helicopter.

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So now that we have enough practice drawing Lewis structures let's talk about actually figuring out this formal charge.

那么现在我们已经做了足够多的画路易斯结构的练习,让我们来讨论一下如何得出形式电荷。

麻省理工公开课 - 化学原理课程节选

I've got it plotted here; it's even more steep than that.

我把它画在这儿,这条线比那条线要陡峭得多

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What you'll actually find in terms of asking your TAs about the Lewis structure rules is that sometimes they won't be as good at them as you are, and the reason is once you've drawn enough of these structures, you start to get a lot of chemical intuition about it just looks wrong to you if it's wrong.

其实如果大家去问助教,路易斯结构的规则是什么的话,你会发现他们有时候可能并不比你们记得更清楚，因为一旦你画过足够多的路易斯结构，你就会开始获得很多化学直觉,如果它是错的，那么对你来说它看起来就是错的。

麻省理工公开课 - 化学原理课程节选