Radioactive purity
[化] 放射性纯度
🧩 词语组成解析
🗣️ 情景例句
You work hard on all your committees,
而你总是在各种委员会里忙，
Rachel promised to listen for the telephone.
雷切尔答应要守着接听电话。
Given more attention, the trees could have grown better.
如果悉心照料，树会长的更好。