translation.en: Last summer, I was able to beta test my device at several residential care facilities in California, and I'm currently incorporating the feedback to further improve the device into a marketable product.
translation.zh: 去年夏天，我开始在美国加州的 一些护理院试用这套设备 目前我正在收集反馈 后续会将这个设备完善成一个可以进入市场的产品