Amnios
abbr. 羊膜穿刺术（amniocentesis）
🗣️ 情景例句
Do you live on or off campus?
你住在校内还是校外？
Chains of gold are stronger than chains of iron.
金链锁人比铁炼更牢靠。
steam boats carried thousands of visitors across the Channel from Europe.
但汽船还是把成千上万的参观者从欧洲大陆送过了英吉利海峡。