Pteryla
n. [鸟]羽区(指鸟的生羽部位)
🗣️ 情景例句
Do you have a job lined up after graduation?
你毕业后有工作等着你吗？
Though malice may darken truth,it cannot put it out.
恶意可以糟塌真理；但无法消灭真理。
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。