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 don't usually listen to the weather. They never get it right!
我不怎么听天气预报。他们总报不准。
Better be the head of the yeomanry than the tail of the gentry.
宁作自由民之首，不为贵族之尾。
But in an old man who has known human joys and sorrows,
可是老年人已经饱尝了人间的甘苦，