这是一个方便储存剩菜的容器。

This is a ___handy container for storing leftovers.

一个方便的相机对于捕捉自发时刻是必不可少的。

A ___handy camera is indispensable for capturing spontaneous moments.

智能手机已成为日常任务中极其方便的设备。

Smartphones have become incredibly ___handy devices for daily tasks.