Vas-
pref. 管, 导管, 管道
🧩 词语组成解析
[医] 管, 脉管
🗣️ 情景例句
There's always a friend around when you need one.
当你需要朋友帮忙的时候，总会有朋友在你身边的。
First come, first served.
捷足先登。
But animals of this age do not easily become subservient to man,
但这个年龄的象不易驯服，