- 有助于: contribute to; be conducive ...
- 解放: liberate; emancipate
- 的: 4次方是 The fourth power of 2 i ...
- 有助于: contribute to; be conducive to; conduce to 他们的发明有助于电气工程学的发展。 their inventions have contributed to the development of electrical engineering. 体育锻炼有助于增强体质。 exercise is conducive to good health
- 便于, 有助于: militate in favor of
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