As we know, massive destruction of environment has brought about negative effects and even poses a great threat to man's existence.
正如我们所知，大规模破坏环境带来负面影响，甚至造优游总代巨大威胁人类的生存。 来自：人和环境Man and His Environment
Heavy transportation pressure in large cities may bring much inconvenience to people and exert negative impacts on the environment.
Therefore, except for the schools, children have to spend more time on study, and their burden is so heavy that may bring negative influence on them.
因此，除了优游总代以外，孩子们必须花更多时间在学习上，他们的负担如此之重以至于给他们带来了负面影响。 来自：孩子们的沉重负担 Heavy Burden on Children