Radiostrontium
n. [化] 放射性锶
🗣️ 情景例句
I can't figure him out-he's a mystery!
我不能理解他，他真是个迷。
If anyone here does one of these things, let me know.
这儿如果有人也喜欢打羽毛球或读书，请告诉我。
No, I don't think we have.
我想没有。