🧩 词语组成解析
n. 交通设施, 通讯系统
🗣️ 情景例句
Where did you go to school?
你在哪儿上学?
How long will it take for a letter to get to California?
你把信寄到加州要多长时间?
What's the matter with you?
你怎么啦?