Diserimity
可识别性
🗣️ 情景例句
Hi, big guy.
嗨， 好小子。
I'm playing ping-pong downstairs.
我在楼下打乒乓球。
(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，