water 不可数名词意思是"水"。two glasses of water 一杯水, drinking water 饮用水, water pollution水污染, clean/dirty water 净/脏水。waters pl: 1.(某个国家的)领海，海域：如：We were still in British waters.我们仍在英国的领海上。 2. （某一江，湖，河，海的）水域。如：This species is found in coastal waters around the Indian Ocean. 在环印度洋沿岸的海域有这一物种。 3. 不明朗（或未知的，困难， 危险等）局面：The government has warned of stormy waters ahead.政府已告诫说，以后局势将很严重。