动词
中文翻译：下降的
同义词：
['descend', 'descending']
例句：
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1. The sun is setting, and the temperature is beginning to decline.
太阳正在落下，温度开始下降。
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2. The river is descending through a valley.
河流正通过一个山谷向下流。
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3. The train was descending when it hit the station.
火车在撞上车站时正在下降。