Usr
abbr. 不加热血清反应素玻片试验（Unheated Serum Reagin）；用户服务例行程序（User Service Routine）；美国机器人公司（U.S. Robotic）
🗣️ 情景例句
Why do you want to resign your position as secretary?
你为什么想辞去秘书的职务？
I was surprised to see you here.
我想不到在这里碰到了你。
She has been collecting stamps.
她一直收集邮票。