Ectolabium
下唇
🗣️ 情景例句
Oh, you'll do it. It's a piece of cake.
噢 你办得到的。这不费吹灰之力。
Every dog is a lion at home.
夜郎自大。
Not all sounds made by animals serve as language.
动物发出的声音不都是用作语言交际。