Casas
(casa 的复数) abbr. 天文学高级研究中心（Centre for Advanced Study of Astronomy）；计算机与自动化系统（Computer and Automated System Association）；合作应用卫星A（Cooperative Application Satellite A）
🗣️ 情景例句
take a vacation away from the family--alone.
离开家人而单独在一起渡个假。
Won't you come alone with me? My boss wants to see you.
能跟我一起来吗？我们老板有事要见你。
Some children can cover the whole length of the pool without coming up for breath even once.
有些孩子能够跑完游泳池的全长而不用露出水面换气。