Vector fnction
[电] 向量函数
🧩 词语组成解析
🗣️ 情景例句
if it's all right with your dad.
假如你爸爸答应的话。
You'll fall, if you don't take care.
你不专心的话，就会跌倒。
Some of my acquaintances in the country come up to town once or twice a year to visit the theatre as a special treat.
我在乡村有一些熟人，他们每年进城来看一回或几回戏，并把此看作一种特殊的享受。