The so-called pure Land is the pure world free from mundane pollutions.
所谓“净土”，意指无浊污染的清净世界。
Noise has been generally regarded as one of the most important environment pollutions.
噪声已经被公认为一种重要的环境污染。
Noise has been generally regarded as one of the most important environment pollutions.
噪声已经被公认为一种重要的环境污染。
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