1·Atmospheric layer is a part most active in global environment.
大气层是全球环境各组成部分中最活跃的一个部分。
2·Because Venus atmospheric layer is extremely high reflectivity, sunlight is reflected, hence make most of it particularly bright, also observed so clear.
由于金星大气层有极高的反射率,太阳光大部分被反射,因此使得它特别明亮,也观察得特别清晰。