纪录片《非洲》 第48期:好望角（6）

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Now, many miles from their natural home,

现在 家乡已在数英里之外

and in response to an unknown cue,

或许是收到某种未知的信号

they stop and begin to circle.

他们停下来开始围成一圈

Other marine¹ fish that migrate upriver

其他海洋鱼类逆流而上

usually do so in order to breed,

通常是为了繁殖后代

but there's no evidence that these kingfish spawn² up here.

但没有迹象表明无鳔石首鱼在淡水河中产卵

Neither do they hunt.

他们也不是来捕食的

So what are they doing?

他们究竟在干什么

In truth, the purpose of this strange behaviour is still unknown.

事实上这种怪异行为的目的至今不为人知

Within a few weeks,

几个星期之后

they will retrace³ their journey back to the ocean.

他们会沿着来路返回大海

The lives of kingfish,

无鳔石首鱼的生活

like those of turtles and butterflies and pelicans⁴,

与海龟 蝴蝶和鹈鹕一样

are influenced by the Agulhas Current.

都受到厄加勒斯洋流的影响

1 marine   

adj.海的；海生的；航海的；海事的；n.水兵

参考例句：

• Marine creatures are those which live in the sea. 海洋生物是生存在海里的生物。
• When the war broke out,he volunteered for the Marine Corps.战争爆发时，他自愿参加了海军陆战队。

2 spawn   

n.卵，产物，后代，结果；vt.产卵，种菌丝于，产生，造成；vi.产卵，大量生产

参考例句：

• The fish were madly pushing their way upstream to spawn.鱼群为产卵而疯狂地向上游挤进。
• These fish will lay spawn in about one month from now.这些鱼大约一个月内会产卵。

3 retrace   

v.折回；追溯，探源

参考例句：

• He retraced his steps to the spot where he'd left the case.他折回到他丢下箱子的地方。
• You must retrace your steps.你必须折回原来走过的路。

4 pelicans   

n.鹈鹕( pelican的名词复数 )

参考例句：

• Kurt watched the Pelicans fire their jets and scorch the grass. 库尔特看着鹈鹕运兵船点火，它们的喷焰把草烧焦。 来自互联网
• The Pelican Feeding Officers present an educational talk while feeding the pelicans. 那个正在喂鹈鹕的工作人员会边喂鹈鹕边给它上一节教育课。 来自互联网