Invariance
n. 不变性\\n[计] 不变性, 不变式
🗣️ 情景例句
Have you anything dutiable?
您有应缴税的东西吗？
I swear I'll never tell anyone.
我发誓不告诉任何人。
No, Mom, said Lucy. I forgot the money!
“没有，妈妈，”露西说，“我忘记带钱了！”