Discontentful
a. discontent的变形
🗣️ 情景例句
Please, come in. Join us.
请进。跟我们一起吃吧。
I'll call the roll before class.
课前我要点名。
(A light year is the distance which light travels at 186,000 miles per second in one year,
一光年是光以每秒186，000英里的速度在一年内走的距离，