广播电视英语短句 第 71 课：藻类植物-4

It also has a contract with Washington State to collect the algae called ulva, or sea lettuce, in parts of Seattle's Puget Sound waterway. 它也和华府签署了一项合同，在西雅图普吉湾部分水路中搜集叫石蒓的海藻。

In Puget Sound, big blooms of sea lettuce often break down in Dumas Bay. 在普吉湾地区，大量繁殖的石蒓经常在大仲马湾腐烂分解。

This process of rotting uses up oxygen and kills marine life. 石蒓腐烂期间会耗尽水中氧气，以致杀死了海洋生物。

And when the sea lettuce washes up on the beach, it smells terrible. 并且当石蒓冲刷沙滩的时候，气味令人恶心。

Blue Marble President Kelly Ogilvie says his company has collected almost four thousand kilos of algae in two harvests. Blue Marble 董事长 Kelly Ogilvie 说，公司在 2 个收获期搜集了将近 4000kg 的海藻。

The next step is to use bacteria to break down the algae into natural gas and different chemicals. 下一步就是用细菌把海藻分解成天然气和不同的化学物质。