One eof the main effects of human activity on an area is water pollution.
人类活动对一个地区的主要影响之一是水污染。
Music, a product of human psychological activity, has therapeutic effects.
音乐是人心理活动的产物,同时音乐还具有一定的治疗作用。
Music, a product of human psychological activity, has therapeutic effects.
音乐是人心理活动的产物,同时音乐还具有一定的治疗作用。
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