一个潜在的问题是，张嘴呼吸会减损这些鱼类的流线型，可能使它们的速度减慢。

One potential problem is that opening the mouth to breathe detracts from the streamlining of these fishes and tends to slow them down.

youdao

一个潜在的问题是，张嘴呼吸会减损这些鱼类的流线型，可能使它们的速度减慢。

One potential problem is that opening the mouth to breathe detracts from the streamlining of these fishes and tends to slow them down.

youdao