Trees are useful to man mainly in three ways,the most import

Trees are useful to man mainly in three ways,the most import 英语翻译Trees are useful to man in three very important ways:the 英语翻译Trees are useful to man in three important ways:they pro Trees are useful to man in three important ways: They provid Trees are useful to men in three important ways:They p 1 the Trees are useful to men in three important ways:they give th 英语翻译Trees are useful to men in three important ways:they giv 英语翻译Trees are useful to us in three very important ways.They 阅读理解。     Trees are useful to man in three im 阅读理解.     Trees are useful to man in three im 阅读理解     Trees are useful to man in thre 阅读理解.T 阅读理解.     Trees are useful to man in t