Uses
abbr. 美國就業(yè)局（United States Employment Service）
??? 情景例句
Who is it?
是誰?
I hope you can like the picnic.
我希望你能喜歡這野餐。
(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英里的速度在一年內(nèi)走的距離，