Mercier's valves
[醫] 梅爾西埃氏瓣(輸尿管襞)
?? 詞語組成解析
n. 閥門；真空管；瓣膜（valve的復數）
??? 情景例句
Has poor scholastic record, just got by.
學習成功不夠好，僅僅過得去而已。
Work today, for you know not how much you may be hindered tomorrow.
今天有事今天做，明天可能事受阻。
Though they may atttain considerable accuracy in the perception of flat form,
雖然他們對平面形的感覺能達到相當準確的程度，