这款ultrathin笔记本电脑只有5毫米厚，非常便于携带。

This ___ultrathin laptop is only 5mm thick, making it very portable.

这款ultrathin显示屏比普通屏幕轻了50%，更适合便携设备。

This ___ultrathin display is 50% lighter than regular screens, making it ideal for portable devices.