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
Rules are meant to be followed, not broken.
规则制订出来是让人遵守，而不是让人破坏。
How are you this evening?
今晚上您好吗？
Country people run wild when they go shopping in the city and stagger home loaded with as many of the exotic items as they can carry.
乡里人进城采购欣喜若狂，每次回家时都买足了外来商品，直到拿不动方才罢休，连走路都摇摇晃晃的。