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。
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