鲸鱼唱歌，唱给谁听？

Whales sing very low songs in the deep sea. 鲸鱼在深海里，唱着很低的歌。 These sounds can travel hundreds of kilometers. 这些声音，能传几百公里远。 Males sing to attract other whales. 雄鲸唱歌，是为了吸引同伴。 The whole ocean can hear their tunes. 整个海洋，都能听到它们的调子。 Different groups have different songs. 不同的鲸群，有不同的歌。 Whale songs are like the radio of the sea. 鲸歌，就是海底的电台。