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
Well, he's here with his daughter to have lunch.
嗯， 他和他女儿已到这里等吃午餐了。
How long did the movie last?
电影放了多久了？
It took a very long time to carve a page for a book.
刻一页书要花费的时间太长。