伊卡莱姆的ScalersTalk第四轮新概念朗读持续力训练Day

练习材料：

Lesson38-1 Water and the traveler

Contamination of water supplies is usually due to poor sanitation close to water sources,sewage disposal into the sources themselves, leakage of sewage into distribution systems or contamination with industrial or farm waste. Even if a piped water supply is safe at its source, it is not always safe by the time it reaches the tap. Intermittent tap-water supplies should be regarded as particularly suspect.

Travellers on short trips to areas with water supplies of uncertain quality should avoid drinking tap-water, or untreated water from any other source. It is best to keep to hot drinks, bottled or canned drinks of well-known brand names -- international standards of water treatment are usually followed at bottling plants. Carbonated drinks are acidic, and slightly safer.

应用配置：L0+L4

知识笔记：Contamination/    sewage/    Carbonated/

练习感悟：用时11分。提前录制完。