齐心

All people cooperated in the development of our country.

每一个人都为国家的发展而齐心协力。

Everyone cooperated in decorating the classroom.

大家齐心协力装饰教室。

All relevant departments will co-operate to publicise this MPF system which affects the general public.

有关齐心合力，推广这影响广大市民的。