Lst‘s save water.等于什么

Lst‘s save water.等于什么 Let's save water save the water 和save water有什么区别 let's save water = let's ___ ___ water save water June lst什么节日 什么June lst let's save water 的同义句 It's very ___(importance)to save water save water还是saving water? Our earth is short of water.It's important to save water,but water 等于什么