Lanthanide contraction
[化] 镧系收缩
🧩 词语组成解析
n. 镧系元素\\n[化] 镧系元素; 镧系
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
Marilyn, you want coffee or tea? Marilyn
要咖啡还是茶？
For those of you that didn't hear it, the question was how soon we could expect the product to be on sale.
你们并未听说过，问题是产品多快能上市。
Tom and Mary congratulated us on the birth of our daughter.
汤姆和玛丽为我们女儿的出生向我们表示祝贺。