Pedistibulum
镫骨
🗣️ 情景例句
Exploring outer space is a challenge to mankind.
探索外层空间是一项向人类发出的挑战。
Why didn't you do it?
为什么你不做？
I hope you are well. Thank you for your last letter.
愿你身体健康。感谢你上次来信。