Actinide contraction
[化] 锕系收缩
🧩 词语组成解析
n. [化]锕类
contraction
[kən'trækʃən]
n. 收缩，缩减;[语]缩略，略体，缩写;（开支等）缩减;（分娩时）子宫收缩;
🗣️ 情景例句
I must say the products in Shanghai have improved very much in the past ten years.
我得承认上海的产品这十年来进步了很多。
He likes playing hide and seek.
他喜欢玩捉迷藏。
Thank you, Polly! laughed Ann.What a beautiful present! I can wear it in my new hat.
“谢谢你，波利！”安笑着说。“多么美丽的礼物啊！我可以把它插在我的新帽子上。”