Parity conservation
[化] 宇称守恒
🧩 词语组成解析
🗣️ 情景例句
Come on in, Mrs. Cooper.
请进 Cooper太太。
On the first day of the new year.
新年的第一天。
I turned to look at the children, but there weren't any in sight: they had all run away! The man laughed when he realized what had happened.
我转过头去看那些孩子，但一个也不见，全都跑了！当那个人明白了发生的事情时，笑了起来。