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
OK. Now, I have ... first ... a couple of questions here.
好， 现在，我有……第一……几个问题。
She's head over heels in love with him.
她深深地爱上了他。
So he decided to emigrate.
于是他决定移居他国。