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 want them to grow up
我不希望在他们成长期间
Isn't your wife's name Ethel?
尊夫人的名字是不是叫艾雪儿？
Are there any boats in the picture?
画里面有船吗？