Packet-switching
包交换
🧩 词语组成解析
[计] 交换\\n[经] 转换, 调换, 调头
🗣️ 情景例句
He's independent,
他的独立性强，
Which one do you want to buy?
你买哪一个？
Work on it had begun before my sister left.
这栋房子在我姐姐离开之前就已动工了，