portable ciphering unit

例句：

1. 1. Thenew laptop is incredibly portable and can becarried anywhere.
   这款新笔记本电脑非常便携，可以随身携带。
2. 2. The portable charger is perfectfor on-the-go poweringup devices.
   便携式充电器非常适合在旅途中为设备充电。
3. 3. The portable WiFi hotspot allows you to connect to the internetwithout a fixed router.
   便携式WiFi热点允许您无需固定路由器即可连接互联网。