Valnllae vasorum
[医] 血管瓣
🗣️ 情景例句
and writing the background for Family Album,U.S.A.--
为Family Album,U.S.A.撰写背景说明的年轻人
One hour today is worth two tomorrow.
今天的一个小时抵得上明天的两个小时。
That's easier said than done!
说来容易做起来难哪！