这无疑是表情图被很多人使用和喜爱的原因之一。

No doubt that's one reason why digital stickers are used and enjoyed by so many people.

youdao

这就是为什么UML拥有几种图的原因之一：一个软件是如此复杂，以至于我们无法在单一图上对其所有方面建模。

This is one of the reasons why the UML has several diagrams: software is so complex you cannot hope to model all of its aspects on a single diagram.

youdao

其次，更细微的原因是模型，不是图，成为系统的结构、语义和行为的记录的表示。

A second, more subtle reason is that the model, not the diagrams, becomes the expression of record for the structure, semantics, and behavior of the system.

youdao

And the reason we can see that by looking at this graph is that we see that nitrogen when it's bonded is in an even lower well than we saw for hydrogen.

原因可以通过观察这幅图发现,我们看到氮在成键之后将处于更低的势阱中,对氢而言。

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