The arrival of large number of tourists will bring irretrievable damage to cultural heritage. Each year more than thirty cultural relics are destroyed because of tourism and these damages cannot be remedied.
从这里看, 这里的cultural heritage或者cultural relics可以互换使用, 指抽象的概念时用heritage, 指具体的时候用relics, 比如这里的受破坏的遗产
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