Mercier's valve
[醫] 梅爾西埃氏瓣(輸尿管襞)
?? 詞語組成解析
valve
[v?lv]
n. 閥;真空管;（管樂器的）活栓;（心臟的）瓣膜;
vt. 裝閥于;以活門調節;
??? 情景例句
I'm not only willing to help, I'm willing and able.
我不但示意幫忙，而且能夠幫上忙。
It says a storm may come next month.
天氣預報說下個月會有一場暴風雨。
Are you going to ship this by air?
這批貨你要用空運的嗎？