Variational notation
[计] 变分记号
🧩 词语组成解析
a. 变异的
🗣️ 情景例句
What's the deadline for claim?
索赔的有效期多长？
Score twice before you cut once.
三思而行。
Thanks very much. Granny, the hospital is not very near.
非常感谢。老大娘，这家医院有点远。