英语语法分析

Especially, the river's Chinese paddlefish has died out.

尤其是河里的中华白鲟已经灭绝了。

Why couldn't the Chinese paddlefish be raised in captivity?

为什么白鲟不能人工繁殖？

It's a Chinese paddlefish known as "king of all national freshwater fish".

它是一种中国白鲟，被誉为“全国淡水鱼之王”。