Amnios
abbr. 羊膜穿刺术（amniocentesis）
🗣️ 情景例句
Make another left to Wooster.
再向左转就到了Wooster街了。
His necktie is behind the book case.
他的领带在书架后面。
Soon afterwards, the balloon began to descend and it landed near an airfield.
不久，气球开始降落，在一个停机坪附近着了陆。