Radioactive potassium
[医] 放射性钾, 射钾
🧩 词语组成解析
potassium
[[pə'tæsiəm]]
n. 钾\\n[化] 钾K
🗣️ 情景例句
but they need me at the hospital today,
但今天医院有事，
I wish I could repay you somehow for your kindness.
我希望我能报答你你的善意。
In the beginning they used to carve Chinese characters on stones to record important dates in history.
开始时，他们常把汉字刻在石头上，记载历史上重要的日期。