Allanic acid
[化] 褐帘石\\n[医] 脲乙醛酸
🧩 词语组成解析
🗣️ 情景例句
How did the accident happen?
事故是怎么发生的？
First, I would like to express to all of you here our sincere welcome.
首先，我向在坐的诸位表示诚挚的欢迎。
All the students are expert drivers, but before they drive any of the buses, they will have to pass a special test.
所有的学生都是开车的能手，但在驾驶公共汽车之前，他们必须通过一项专门测验。