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
Thanks, Susan.
谢谢, Susan。
How long have you been married?
你们结婚多久了?
When my husband was going into the dining room this morning, he dropped some coins on the floor.