common carp

例句：

1. 1. The common carp is a popular food source in China.
   普通鲤鱼是中国常见的食物来源。
2. 2. The common carp plays an important role in the ecosystem.
   普通鲤鱼在生态系统中起着重要的作用。
3. 3. The common carp is threatened by overfishing and habitat loss.
   普通鲤鱼因过度捕捞和栖息地丧失而受到威胁。