Actinouranium decay series
[化] 锕铀衰变系
🧩 词语组成解析
n. [化]锕铀
🗣️ 情景例句
There's no room for any excuse for what you have done.
你的所作所为没有辩解的余地。
My brother gets up later than I do.
与我做比，我的兄弟晚起床。
She stamped out the letters 'SOS' in the snow.
她在雪地上踩出了“SOS”这3个字母。