第1个回答 2012-01-31
Protect the flowers and plants trees ,Do not spit and throw trash everywhere
第2个回答 2012-02-09
no spitting, no littering
第3个回答 2012-01-31
Take good care of trees and flowers, not spitting, not to throw rubbish
第4个回答 2012-01-31
Take good care of trees and flowers, not spitting, not to throw rubbish