Trais
abbr. Transportation Research Activity Information Service (Department of Transportation) 交通研究活动信息服务（交通部）
🗣️ 情景例句
78 percent of black high-school graduates are unemployed.
百分之四十八的黑人高中毕业生失业。
Why are you so sleepy?
你为什么这样想睡？
UNCLE WANG'S FACTORY
王大叔的工厂