Radioactive constant
[医] 放射性常数
🧩 词语组成解析
🗣️ 情景例句
Since I retired,
自从我退休以后，
This window is just as high as thsat one.
这扇窗户刚好和那扇一样高。
No one suspected that there might be someone else on the farm who had never been seen.
谁也没想到农场竟会有一个从未露面的人。