Radiostrontium
n. [化] 放射性锶
🗣️ 情景例句
as well as the younger people of Riverdale.
和年轻人服务。
Have you ever thought about becoming a professional musician?
你曾经考虑了成为一个职业的音乐家吗？
My grammar is improving, but I find idioms and useful expressions hard to learn.
我的语法在进步，但我发现习语和有用表达很难学。