帮忙翻个英语长句这是整段句子“The concept of “environment” is certainly dif

帮忙翻个英语长句
这是整段句子
“The concept of “environment” is certainly difficult and may even be misunderstood; but we have no handy substitute.It seems simple enough to distinguish between the organism and the surrounding environment and to separate forces acting on an organism into those that are internal and biological and those that are external and environmental.But in actual practice this system breaks down in many ways,because the organism and the environment are constantly interacting so that the environment is modified by the organism and vice versa（反之亦然）.”
请帮忙翻里面的这段长句“It seems simple enough to distinguish between the organism and the surrounding environment and to separate forces acting on an organism into those that are internal and biological and those that are external and environmental”