keep the river clean
保持城市河水清洁
you should throw the garbage into the trash bin.
垃圾丢到垃圾箱
go to school or work by bus if u are not in hurry
尽量乘公交车上下学,班.
use water reasonablely
合理用水
don't spit on the pavement.
不随地吐痰
don't smoke in the public.
不在公共场合吸烟.
keep the river clean
保持城市河水清洁
you should throw the garbage into the trash bin.
垃圾丢到垃圾箱
go to school or work by bus if u are not in hurry
尽量乘公交车上下学,班.
use water reasonablely
合理用水
don't spit on the pavement.
不随地吐痰
don't smoke in the public.
不在公共场合吸烟.