生态系统正在急剧的恶化，因此，我们必须采取严厉的措施遏制对环境的污染。

E. g. The ecological problems are being aggravated. Hence, it is imperative that we take measures to curb the pollution of the environment.

youdao

生态系统正在急剧的恶化，因此，我们必须采取严厉的措施遏制对环境的污染。

E. g. The ecological problems are being aggravated. Hence, it is imperative that we take measures to curb the pollution of the environment.

youdao