When building an in-memory tree is not desired or practical, use an iterative parsing technique that does not rely on reading the entire source file. LXML offers two approaches.
如果构建内存树并不是必须的或并不实际，则可以使用一种迭代解析技术，这种技术不需要读取整个源树。
As XXXXXXX reinforces the importance of ethical behavior to our business, here's some practical advice you can use in your everyday activities when deciding how to make the "right" decision.
XXXXXXX强调职业道德行为对我们业务的重要性，这里有一些切实可行的建议，它能够用来帮助你在日常业务中如何去做“正确”的决定。
Short Term Strategy is a practical method for dealing with any type of task, but especially useful in abnormal or emergency situations when use of all available resources is necessary.
短期战略是一个实践方式在于面对各种任务，特别是有效于在异常或应急状态下，当用于所有有效的资源的必要性。
They came into more widespread use in the 19th century, when new waterproof roofing materials and the use of structural steel and concrete made them more practical.
19世纪出现了防水的新型屋顶材料，使得平屋顶更为普遍，钢筋混凝土的使用也使得平屋顶更加实用。
It can be said: a friend is the practical and important type of umbrella, when not in use, can not put it out in the cold.
由此可以说：朋友是把实用和重要型的伞，在不用的时候，不能把它冷落。
You would probably begin by comparing each string in the list with the string other, but when put into application, you would find that this method is far too slow for practical use.
你可能会对数组中的每一个字符串进行比较，但是在实际项目中，你会发现这种做法对某些特殊应用来说太慢了。
When in use, sundries requiring to be aired are spread on the net, and then the hooks are hung on a fixed object. The airing net is practical for airing various sundries.
本发明在使用时，把需晾晒的杂物平摊在网上，然后将挂钩勾挂在固定物上，实用于各种杂物晾晒。
When in use, sundries requiring to be aired are spread on the net, and then the hooks are hung on a fixed object. The airing net is practical for airing various sundries.
本发明在使用时，把需晾晒的杂物平摊在网上，然后将挂钩勾挂在固定物上，实用于各种杂物晾晒。
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