Cavs
abbr. cryopreserved allograft veins 冷藏保存同种异体移植静脉
🗣️ 情景例句
In less than two hours,
在不到两个小时之后，
None but a wise man can employ leisure well.
唯智者善于利用空闲。
Last summer I spent days in the garden watching thousands of ants crawling up the trunk of my prize peach tree.
去年夏天，我花了好几天时间站在花园里观察成千只蚂蚁爬上我那棵心爱的桃树的树干。