portable electrical drill

例句：

1. 1. This laptop is very portable and can be taken anywhere.
   这台笔记本电脑非常便携，可以带到任何地方。
2. 2. The new phone has a portable design that makes it easy to carry around.
   这款新手机具有便携式设计，便于携带。
3. 3. Portable power banks are useful for people who need to charge their devices on the go.
   便携式充电宝对于需要在路上为设备充电的人来说非常有用。