Hums
abbr. 健康和使用监控系统（Health and Usage Monitoring System）
🗣️ 情景例句
Right.
对。
How much is it by air mail?
航空信要多少钱？
Last summer I spent days in the garden watching thousands of ants crawling up the trunk of my prize peach tree.
去年夏天，我花了好几天时间站在花园里观察成千只蚂蚁爬上我那棵心爱的桃树的树干。