What do trees need? Why do we need trees? 求英语回答

What do trees need? Why do we need trees? 求英语回答 what do you need What do they need? The trees need+ do/doing还是to do? what i need to do what need i do? do, what ,their ,need , teachers ,? what do you need( )children? what marriage do i need what we need和what do we need区别 What are you going to do this weekend?I'mgoing to plant trees.Plant trees?Yes.I need some plants.谁能帮我翻译一下这一小段话!急!~~~~~~~~ What do they need?怎么翻译? what do you need take with sure,what do we need?翻译 What do we need意思RT What do plants need?(按实际情况回答) how much what do we need What do we need to take photos? what do we need?中文意思