plutonium
n[U]
(chemistry 化) artificially produced radioactive metallic element, derived from uranium and used in nuclear reactors and nuclear weapons 金不. =>App 10 见附录10.
🗣️ 情景例句
No sweat.
小事儿。
I'm broke.
我身无分文。
Around the year 1600 the first horses were brought to the American continent by the Spanish.