wood 作木材讲时 不可数作森林 讲时 可数The desks are made of wood.One tree doesn't make a wood.请及时采纳,不懂继续问(天天在线)。(*^__^*) 祝学习进步! 谢谢!
作木头,木材讲是不可数名词。如:Put some wood on the fire .作树林讲是可数名词如:There is a house in the middle of a wood.
都不是