sei whale

例句：

1. 1. The sei whale is a fascinating creature to observein the ocean.
   在海洋中观察鲸鱼是一种令人着迷的生物。
2. 2. Seiwhales are known for their intelligence andplayful nature.
   鲸鱼以其智力和活泼的性格而闻名。
3. 3. In some regions, huntingsei whales is illegal due totheir critical importance in the ecosystem.
   在一些地区，狩猎鲸鱼是非法的，因为它们在生态系统中至关重要。