Unstable nucleus
[电] 不稳定核
🧩 词语组成解析
🗣️ 情景例句
What is your cancellation policy?
我怎么退票？
He deserves praise.
他应得称赞。
Chaplin lived the last years of his life in Switzerland, where he was buried in 1977.
卓别林在瑞士度过他的晚年，1977年他被安葬在那里。