Aligninum
木纤维敷料
🗣️ 情景例句
Hello, Mr. Stewart.
哈喽， Stewart先生。
We couldn't help the accident.
我们未能防止事故发生。
(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，