S011-3 《行星地球-淡水》Planet Earth-Fresh Water
重点词汇：
1.Harsh 粗糙的，苛刻的，严酷的
【同】coarse, severe
【固】be harsh on 对……苛刻

2.Flourish 繁荣，茂盛
【同】thrive, prosper
【固】the business will flourish 生意会兴旺
Prosper 兴旺，繁荣

原音重现：

A: Baikal is the oldest lake in the world and despite the harsh conditions, life flourishes here in isolation. 80% of its species are found nowhere else on Earth, including the word's only freshwater seal. With this seal and its marine-like forests of sponges, Baikal seems more like an ocean than a lake.
贝加尔湖是世界上最古老的湖泊，尽管生存条件恶劣，生命仍在这个与世隔绝的地方得到了兴盛。 湖里80%的物种在地球上其他地方都不存在，包括世界上唯一的淡水海豹。有了这种海豹，再加上海底森林一般的海绵，贝加尔湖看起来更像是海洋，而不是湖泊。