Mitral valve prolapse
二尖瓣脫垂
?? 詞語組成解析
a. 二尖瓣的, 僧帽狀的\\n[醫(yī)] 僧帽狀的, 僧帽瓣的, 二尖瓣的
valve
[v?lv]
n. 閥;真空管;（管樂器的）活栓;（心臟的）瓣膜;
vt. 裝閥于;以活門調(diào)節(jié);
vi. 脫出, 脫垂\\nn. 脫出, 脫垂
??? 情景例句
What currency do they use in U.S.A.?
在美國人們用什么貨幣？
We're in the same boat.
我們處境相同。
One young calf especially enjoyed raising a turtle to the surface with his snout and then shoving him across the tank like an aquaplane.
一只小海豚特別喜歡用鼻子把海龜推到水面，然后像滑水板一樣把海龜從水池的這一邊推到那一邊。