常見(jiàn)例句

• "Once the iceberg stuck fast on the seabed it was like a rock in a river," said scientist Vera Schlindwein.
  人們此前發(fā)現(xiàn)，南極的冰塊也能唱歌。南極冰雪經(jīng)過(guò)漫長(zhǎng)時(shí)期逐漸積累，壓實(shí)，變成冰川冰。
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