https://tw.voicetube.com/everyday/20171012

英文：

Most species can open and close their mouths to pump the water through. But white sharks and a couple dozen other species don’t do that. To breathe, they have to move forward through the water with their mouths open.

大部分的物種可以透過開口與閉口的方式將水運送通過鰓，但是大白鯊和其他幾十種物種並不這樣做，牠們必須同時在水中向前移動並將嘴巴張開才能夠呼吸。