Nonsingular
非退化的, 非奇的
🗣️ 情景例句
I had a really bad day.
今天真是糟透了。
How many pieces are you going to buy?
你要买几个？
(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，