Undulators
(undulator 的复数) [电] 波纹印码机
🗣️ 情景例句
But it'll be better tomorrow.
但是明天就会好多了。
Light troubles speak; great troubles are silent.
小困难，大声叫嚷；大困难，闷生不响。
He was a shrewd and wealthy businessman, but most people in the town hardly knew anything about this side of his life.
他是个精明能干、有钱的商人，但镇上大部分人对他生活中的这一个方面几乎一无所知。