Radium content
[医] 镭含量
🧩 词语组成解析
🗣️ 情景例句
It's an album of pictures of the United States:
是关于美国的
The student has made tremendous progress.
这个学生进步非常快。
Aeroplanes have the reputation of being dangerous and even hardened travellers are intimidated by them.
飞机以危险而著称，连老资格的旅行者也怕飞机。