粘液

qīng wā de luǎn bèi guǒ dòng zhuàng de nián yè bāo guǒ zhe

青蛙的卵被果冻状的粘液包裹着。

The frog’s eggs are surrounded by a coating of jelly-like mucus.

liú suān nián yè

硫酸粘液

sulphuric acid mucus