Preserve the ecological environment.
保护生态环境。
It's the common cause of all the human beings to cherish and preserve the ecological environment.
珍爱生态环境是全人类共同的事业。
Preserve the ecological environment. Stay off public lawns, and refrain from picking flowers or fruits. Don't chase, catch, or throw stones at animals or feed them irresponsibly.
保护生态环境。不踩踏绿地，不摘折花木和果实，不追捉、投打、乱喂动物。
Preserve the ecological environment. Stay off public lawns, and refrain from picking flowers or fruits. Don't chase, catch, or throw stones at animals or feed them irresponsibly.
保护生态环境。不踩踏绿地，不摘折花木和果实，不追捉、投打、乱喂动物。
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