- 重点词汇
- 相关例句
重复思考往往是由于精神疲劳和退黑激素损耗而导致的抑郁症的前兆.
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Body temperature and the secretion of the hormone melatonin follow the daily cycle.
体温及褪黑素分泌都受周期影响.
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So, while Melbourne was not a convict settlement, it wasn't squeaky-clean either.
由此可见, 早先的墨尔本虽不是流放犯的聚居地, 但也不是十分清白的.
百科语句