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
I just received your letter and I want to let you know my opinion on your plans for the future.
来信已收到，我想告诉你我对你将来打算的看法。
What time are you leaving?
你几点钟走？
It's er … oh, I can't find it!
票，嗯……啊，找不到了！