oral part的 story retelling相对较难，不过可以听两遍，拿到部分分数应该还是有可能的，而 listen and answer the questions（听短文回答问题）难度最大，因为短文和问...
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在某种光照下相对较难辨认的颜色或式样，在另外一种光照下也许相当显眼。
A color or pattern that is relatively indistinct in one kind of light may be quite conspicuous in another.
然后读一些相对较难的文章，做一些问答题。
Then read some considerably difficult articles and do some questions and answers exercises.
相对对齐相对较难，原因是它取决于表单的构建顺序。
Relative alignment is more difficult to work with because it depends upon the build order of the form.
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