正常生存 meaning in English
normal existence
Examples
- When the change in the air substances increases to the level that endangers to living things normal life , the air is then polluted
当大气成分的变化增大到危及生物的正常生存时，就造成了大气污染。 - Environmental pollution is a phenomenon caused by human activities that degrade environmental quality and damage the normal existence and development of mankind and other lives
环境污染是由于人类活动所引起的环境质量下降而出现的有害于人类及其他生物的正常生存和发展的现象。