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
Do you know that I mean?
知道我的意思吗？
Is the plain along the river good for farming?
河畔的平原易于发展农业吗？
Big Ben has rarely gone wrong.
“大本”钟极少出差错。