Amnios
abbr. 羊膜穿刺术（amniocentesis）
🗣️ 情景例句
In ancient times the rich used jade or gold chopsticks to display their wealth.
在古代，富人家用玉或金子制成筷子以显示其家庭的富有。
I asked him to pay, but he wouldn't.
我请他付账，但是他不肯。
This is what we need.
我们要的就是这个。