Pollution-related algae blooms have appeared in major water basins, including just before the 2008 Olympic Games in the bay set aside for sailing competition.
主要流域出现了污染造成的藻类大量繁殖，其中2008年北京奥运会前帆船赛的海湾就出现过类似问题。
If you're in a coastal region, it pays to do a bit of homework on the cleanliness of the local fresh and ocean water supplies; algae blooms or cholera outbreaks will be widely reported.
如果你在沿海地区，你就要对当地的事物有所了解，如干净新鲜的海产品、水藻，以及广泛报道的霍乱疫情。
Overfertilization can also harm crops — as well as human babies if nitrogen seeps into their drinking water — and often triggers algae blooms and "dead zones."
就像小孩子的饮用水里渗进了氮气一样，过度施肥也让作物深受其害，经常引发水华、形成“死区”。 美国环境保护署：草坪撒肥机
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