例句 /

Bird reduction with the increasing of people activities, deforestation and hunting, however, the vicissitudes are difference in different types of forests.

Bird reduction with the increasing of people activities, deforestation and hunting, however, the vicissitudes are difference in different types of forests.

云南西双版纳地区原始森林面积逐渐减小,人口及人为活动不断增加,鸟种趋于减少,但各林型鸟种变化有异同。