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
the copy of Richard's book on my desk?
在我桌上那本Richard的书 好吗
It is easy to open a shop but hard to keep it always open.
开设店铺易，维持常开难。
The order to abandon ship was given and hundreds of people plunged into the icy water.
于是，他发出弃船的命令，几百人跳进了冰冷刺骨的海水里。