Indeed , the world 's 37 species of seahorse are fish , breathing through gills and using a swim bladder to control their buoyancy .
事实上,世界现存37种的海马是鱼类,他们用腮呼吸,用鱼鳔控制他们在水中的沉浮。
Damselflies have large and external gills which resemble three fins at the end of the abdomen .
蜻蜓有着大且位于外侧的鳃,如同三个鳍一样位于腹部末端。
Any of various mostly cold-blooded aquatic vertebrates usually having scales and breathing through gills .
多种冷血的水生脊椎动物,通常有鳞并用腮呼吸。
If dr. james bedford does turn up again someday , don 't be surprised if he looks a little green around the gills .
如果一名叫詹姆斯贝德福德的心理学教授某天突然出现的话,不要奇怪为什么他的腮帮子有些发青。
Your tadpoles have turned into froglets and will be using their lungs rather than breathing through gills .
您的蝌蚪就完全变成了青蛙,开始用肺呼吸而不再是用鳃呼吸了。
Both fish and tadpoles have gills .
鱼和蝌蚪都有鳃。
Fish have gills instead of lungs .
鱼用鳃来代替肺。
Some scientists hypothesize that the neural circuitry implicated in human hiccuping is an evolutionary vestige from our amphibian ancestors who use a similar action to aid respiration with gills during their tadpole stage .
一些科学家假设和人类打嗝有关的神经回路是在蝌蚪时期利用腮下肉辅助呼吸的猿人祖先的进化痕迹。
He was white about the gills , because he fell ill .
他脸色苍白,因为他病了。
European cave-dwelling aquatic salamander with permanent external gills .