$课文38 水和旅行者

699. Contamination of water supplies is usually due to poor sanitation close to water sources,

水源的污染通常是由于接近水源的地方卫条件太差而造成的：

700. sewage disposal into the sources themselves, leakage of sewage into distribution systems or contamination with industrial or farm waste.

污水排入水源，污水渗入给水系统或工农业污水造成污染。

701. Even if a piped water supply is safe at its source, it is not always safe by the time it reaches the tap.

即使管道供水系统在水源处安全的，等水到达龙头时就不一定总是安全的了。

702. Intermittent tap-water supplies should be regarded as particularly suspect.

断断续续的水管应该被视为是非常可疑的。

703. Travellers on short trips to areas with water supplies of uncertain quality should avoid drinking tap-water, or untreated water from any other source.

短途旅行到水质不保险的地区时，应避免饮用水龙头的水或未经处理任何其他来源的水。

704. It is best to hot drinks, bottled or canned drinks of well-known brand names -- international standards of water treatment are usually followed at bottling plants.

最好仅饮用开水，名牌瓶装或罐装水 -- 装瓶厂通常遵循国际水处理的标准。

705. Carbonated drinks are acidic, and slightly safer.

碳酸饮料是酸性的，就更安全一些。