Bivariate
[医] 二元变量
🗣️ 情景例句
When was your last complete physical?
上一次全身检查是什么时候？
You'll cut yourself, if you don't take care.
你不专心的话，就会割到你自己。
How long has Jim been at his school?
吉姆到校有多长时间了？