BBC听力 | 海洋岛屿 20

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It happens on just one night a year, in November.

它只发生在一年中11月某个晚上

Armed with torches and homemade nets

带着手电筒和自制鱼网

These islanders prepare for a harvest.

（西萨摩亚岛）这些岛民准备收获

They gather in the reef shallows

他们聚在暗礁浅滩

watching and waiting for what will soon be a flurry of activity.

观察并等待不久将至的活动骤至

As the moon rises, it triggers a natural phenomenon

当月亮升起时，引发了一个自然

And a very strange spectacle -

而非常奇异的现象

The rising of worms -

蠕虫升起来了

Palolo worms.

矶沙蚕

These are actually the worms' rear ends -

实际上这是沙蚕的后半部分

their reproductive segments.

也就是它们的生殖部分

The part with the head remains in the coral rock.

它们的头部仍留在礁石上

When they reach the surface, eggs and sperm will mix.

当到达海面时卵子和精子混合

The tide washes the wriggling worms into the shallows

潮汐将蠕动的蚕推到浅滩中

where they are scooped up by the bucketful.

那里它们能被收集到满满一桶

The whole event lasts just a couple of hours

整个过程只有两小时的时间

but in that time, hundreds of kilos can be gathered.

但就在这段时间里能收集数百公斤

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