Packet switching service
[计] 包交换服务
🧩 词语组成解析
[计] 交换\\n[经] 转换, 调换, 调头
service
['sɝvɪs]
n. 服务，服侍;服务业;维修服务;服役;
vt. 检修，维修;向…提供服务;保养;满足需要;
adj. 服务性的;耐用的;服现役的;
serv服务+ice表名词，行为，状态 →服务
🗣️ 情景例句
Thanks for trying.
谢谢你尽了力。
Cindy's sister will be staying with her for a week.
辛迪的姐姐将要陪她一个星期。
An even harder situation is to be on the platform in good time for a train and still to see it go off without you.
更难堪的情况是虽然及时赶到站台上，却眼睁睁地看着那趟火车启动，把你抛下。