VERB
污染；弄脏
To pollute water, air, or land means to make it dirty and dangerous to live in or to use, especially with poisonous chemicals or sewage.
例句
Heavy industry pollutes our rivers with noxious chemicals...
重工业产生的有毒化学品会污染我们的河流。
A number of beaches in the region have been polluted by sewage pumped into the Irish Sea.
这一地区的一些海滩已被排放到爱尔兰海的污水污染了。