试验说明是：看着每个单词，努力将它形象化（看到”树“时，想像”树“），然后继续下一个单词。
The instructions said: Look at the word, try to visualize it (see "tree;" imagine "tree") and then go on to the next word.
搜索资源从调用元素开始，然后继续搜索逻辑树中的后续父元素。
The search for resources starts from the calling element, then continues to successive parent elements in the logical tree.
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