electric hair cutter

例句：

1. 1. I need to buy an electric hair cutter for my dad's birthday.
   我需要为爸爸的生日买一个电动理发器。
2. 2.The electric hair cutter is very easy to use and convenient.
   这个电动理发器使用起来非常方便。
3. 3. I've been using this electric hair cutter for a week now, and it's really saving me time.
   我已经用这个电动理发器一周了，真的节省了我很多时间。