Polonium dioxide
[化] 二氧化钋
🧩 词语组成解析
polonium
[[pə'ləuniəm]]
n. 钋\\n[化] 钋Po
🗣️ 情景例句
Don't cross that bridge till you come to it.
没到河边，先别操心怎么过桥。
Yes, it's much better than yesterday.
是的，比昨天好多了。
Dad, this bag is too big. We can't carry it.
爸爸，这个包太重了，我搬不动。