Caval
[医] 腔静脉的
🗣️ 情景例句
You have been working on this for some time, Richard.
你从事这工作已有一段时间了， Richard。
That's very nice of you. I guess I could use some help.
谢谢你的好意。我想我可能要一点帮助。
You should have a mind of your own.
你必须有自己的主见。