forest既是可数名词又是不可数名词。
forest
n.森林;林区;(森林似的)一丛，一片
复数： forests
例句：
The forest will take 100 years to reach maturity.
这片森林要花100年时间才能成材。 扩展资料
Much of the country is covered by forest.
森林覆盖着这个国家的大片土地。
Close your eyes and imagine you are in a forest.
闭上眼睛，设想自己在森林里。
How do you navigate your way through a forest?
你怎么才能设法走出森林？
