Ball's valves
[醫] 鮑爾氏瓣, 莫爾加尼氏瓣(肛瓣)
?? 詞語組成解析
n. 閥門；真空管；瓣膜（valve的復數）
??? 情景例句
That should do.
那應該可以了。
If you had gotten up earlier,you would have had time for breakfast.
如果你更早起床，你就有時間吃早餐了。
When their father died, they thought it their duty to keep Eric in hiding.
父親死后，他們兄弟倆認為有責任繼續把埃里克藏起來。