这个练习的全部意义就在于，卡罗尔这首诗诗节的结构就是在告诉学生们，要写出一个有意义的句子，他们必须注意其结构。

The point of it all says Fish is that the structure of Carroll's stanza provides all the clues they need to design a sentence that makes sense.

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游戏还有入门练习，可以把你做出来的蛋白质结构和高分的结构进行比较，这对于新手来说很有帮助。

Introductory exercises and in-game aides like "peekaboo," which compares top-scoring solutions with yours, help novices get up to speed.

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爱波伦丝太太把我喜欢的讲究修辞用语的陈述和严密的组织结构融合在一起，使我在练习中发现了适合自己的写作风格，从而使我的写作水平大大地提高，产生了质的飞跃。

Mrs. Abrams had fused my love of description and articulation with a martinet like organization to improve my writing by leaps and bounds. This allowed me to find my own style of writing.

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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