Cobalt 60
n. 钴的放射性同位素, 钴60
🧩 词语组成解析
n. 钴, 钴类颜料\\n[化] 钴Co
sixty
🗣️ 情景例句
Good afrernoon, Miss Wang. Please sit down.
下午好。王小姐，请坐。
When you go to buy, use your eyes not your ears.
你去购买东西时，要用眼睛莫用耳。
What about you? Where do you live?
你呢？你住在哪儿呢？