Parity conservation
[化] 宇称守恒
🧩 词语组成解析
🗣️ 情景例句
Oh, who could that be?
啊，这会是谁呢？
The wolf may lose his teeth, but never his nature.
江山易改，本性难易。
He did not marry again and I was brought up without a woman's care;
父亲没有再娶，因此，我在没有母亲的环境里长大成人。