Clide
放射性核素浓度
🗣️ 情景例句
We've got permission to go inside the old building
我们已获 进入那栋老建筑物
Nothing is impossible to willing mind (or heart).
有志者事竟成。
What is needed in the case of noise is a study of large numbers of people living under noisy conditions,
对于噪音问题，需要对大量生活在噪音中的人进行研究，