Serves
v. （为…）服务( serve的第三人称单数 ); 任（职）; 提供; 端上
🗣️ 情景例句
He started with them almost forty years ago.
他在那里做了快四十年了。
He is very hard to handle.
他很难应付。
(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，