Variational method
[化] 变分法
🧩 词语组成解析
a. 变异的
🗣️ 情景例句
This is fun. It's a piece of cake.
有意思 毫不费力。
Please hurry, we're a bit pressed for time.
请快点，我们时间不多了。
It's over there,behind the teapot.
就在那儿，茶壶后面。