Precava
n. [动]前腔静脉
🔁 扩展释义
【医】 上腔静脉
🗣️ 情景例句
Sam, this is Susan. Sam
我是Susan。
I can't express myself very well in English.
我不能很好地用英语表达自己。
A great many former pupils will be attending a farewell dinner in his honour next Thursday.
很多老同学都准备参加下星期四为他举行的告别宴会。