1、

Baleen whales often appear in this region. Be careful!

这一带经常有须鲸出没, 要注意安全啊!

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2、

But big baleen whales often run silent.

而大型须鲸常常不声不响地前行.

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3、

The collection of small marine crustaceans of the order Euphausiacea are the principal food baleen whales.

形似虾的浮游甲壳动物;是长须鲸的主要食物来源.

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4、

Large baleen whales primarily use the lower frequencies and are often limited in their repertoire.

大长须鲸最初使用低频,他们的全套本领很有限.

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5、

It was a time when the killer whales, or "killers" as they were then called, helped the whalers catch the baleen whales that were on their annual migration.

在那个时期,杀人鲸,正如当时他们被称呼的,帮助捕鲸者捕杀在每年迁移途中的须鲸。

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6、

But it is easier to hear the baleen whale, with its lower-frequency call, than the beaked whales, says Theriault.

但是,Theriault说,和喙鲸相比,须鲸发出的叫声频率更低,更容易听到它发出的声音。

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7、

One group of whales has, instead of teeth, long strips of bone, hanging from their upper jaw. This is the baleen whale, the largest animal in the world.

有一类鲸鱼,用从上颚骨垂下来的长条状的骨头代替牙齿,它就是须鲸,是世界上最大的动物。

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