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 recognize you ...
我认得你……
If I had had time,I would have called you.
如果我有时间，我就打电话给你了。
especially when it was Hart who, in the end, overcame the attacking Indians.
特别是当哈特最后战胜了前来进攻的印第安人时，观众更能原谅他。