Acropeptide
[医] 无色肽
🗣️ 情景例句
Men and women, young and old, to give us their time.
不管男女老幼 ，请他们贡献时间。
I've made a reservation at the hotel you used last time.
我已预订了你上次住过的旅馆。
who rolled balls down inclined planes,
他就是那个使球体沿斜面向下滚动，