You have to be prepared to start at the bottom and work your way up.
你得准备好从最基层干起,努力向上。
If you start out you day at work stressing about everything you need to get done, some more of that energy leaves.
如果你在今天必须做完的事的压力下开始你的一天,更多的活力流走了。
Here you start at the root XML element and work your way down through the elements it contains.
这里,您从根xml元素开始,一直到遍历它所包含的元素为止。
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