Passive hub
[计] 无源集线器
🧩 词语组成解析
hub
[hʌb]
n. 轮轴;中心，焦点;（电器面板上的）电线插孔;[计]集线器;
🗣️ 情景例句
He must have loved her very much.
他一定非常非常地爱她。
What's the suggested retail price?
建议零售价格是多少呢？
What are you doing?
你在干什么？