As we have seen, control of pollution via nuisance actions and direct regulation is not without its problems.
我们已经清楚妨害行为和直接管制污染并非是没有问题的。
2
Odor or malodor, which refers to unpleasant smells and is generally regarded as a nuisance, is nowadays considered an important environmental pollution issue.
恶臭引起人们不愉快的感受，妨害人们的生产生活，其污染已成为一个重要的环境问题。
3
Until recently pollution was regarded as a nuisance that blackened buildings and sullied streams rather than a threat to human health.