B. u.
[医] 棱底向上
🧩 词语组成解析
[医] 单位
🗣️ 情景例句
Now, I appreciate your offer,
因此， 我感激你的提议。
I wonder if the dentist could fit me in early tomorrow?
请问明天一早牙科医生能抽空给我看一下吗？
Oh, and by the way, my wife wants to know if Mary needs any help.
喔，顺便问一问，我妻子想知道玛丽是否需要帮忙。