B. u.
[医] 棱底向上
🧩 词语组成解析
[医] 单位
🗣️ 情景例句
Something borrowed.
借的东西。
Dinner is on me.
晚饭我请客。
The coffee is very weak; I like it a bit stronger.
咖啡太淡了，我要浓一点的。