这两部伟大的小说创作于不同的文学时期，它们分别阐述了荒岛文学中人性的二重性，各自又有所侧重。
Produced in different literary stages, the two great novels interpret the duality of human nature with different emphasis.
同一主题的相关文档通常是成千上万，它们的内容相似，但又有所不同，各有侧重点。
There are often thousands of documents related to one topic. Most of their contents are quite similar, but also different in their emphasis.
但各门学科的比值又有所不同，所以在全面复习的同时，还要有所侧重。
But the ratio of each course differs somewhat again, reviewing in the round so while, emphasize particularly on somewhat even.
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