B. u.
[医] 棱底向上
🧩 词语组成解析
[医] 单位
🗣️ 情景例句
Technology may bring breakthroughs to many currently incurable diseases.
科技能给现在无法治愈的疾病带来突破。
How much do you want to change?
您想兑换多少？
Where he made mistakes, he admitted these willingly.
无论在哪里犯了错误，他都乐于承认。