A:What's this?

B:It's an instant electrical kettle.

A:Why do you use the instant electrical kettle to heat up water?

B:Because it is easy,convenient,and fast to use.

A：这是什么？

B：这是电随手泡。

A：为什么要用电随手泡烧开水？

B：因为它为生、方便、快捷。