Calculus of variations
[计] 变分法
🧩 词语组成解析
calculus
['kælkjələs]
n. [医]结石，石，积石，牙垢;[数]运算，演算，微积分（学）;
ule,ulus 后缀;表”小,少”#词根助记：calc石头(古时候用石头来计算)##calc 石灰,石头#词根助记：calc石头(古时候用石头来计算)
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
n. 变奏曲, 变更；变种（variation的复数形式）
🗣️ 情景例句
I couldn't help laughing.
我忍不住笑出来。
I'm going to tell him what to say.
我正要告诉他应该说什么。
The workmen told him to do as he pleased and the policeman telephoned for help.
工人说，悉听尊便。警察去打电话叫人。