Radioelement
n. 放射性元素\\n[化] 放射性元素
🗣️ 情景例句
Your car's very noisy. The muffler must be damaged.
你的车噪音真大，消声器一定出毛病了。
I'll call the roll before class.
课前我要点名。
I really enjoy it, but I'm tired of so much reading.
我可喜欢学啦！但要读的东西太多，我很烦。