旅行时我更喜欢使用手持相机，因为它非常小巧。

I prefer using a ___hand-held camera when I travel because it's so compact.

技术人员使用了一个手持设备来扫描条形码。

The technician used a ___hand-held device to scan the barcode.

现在很多人都在手持电脑或平板电脑上读书。

Many people now read books on ___hand-held computers or tablets.