Lagrangian
[化] 拉格朗日; 拉格朗日量
🗣️ 情景例句
Richard, these are terrific pictures. Richard
这些照片真棒。
It is better to fight for good than to rail at the ill.
与其抱怨，不如积善。
I'm afraid it's empty.
恐怕盒子是空的。