Dear brothers and sisters,
  Oh behalf of the University Students' Union, I, the Chairman of the Union , am earnestly calling for yo ur active participation in our environmental protection campai gn. It is the duty of every global villager； man just can not sustain his glorious c i vilization without a rewarding environment, which will be possible only if man makes considerable efforts to protect the environment.
Do you cherish precio us opportunities to volunteer in our joint efforts in environmental protection? Here is a great one not to be missed by any enthusiastic youth； Right next Saturday, our university is to run a publicity campaign to advocate environmental protection across the city. The University Students' Union will be in charge of recruitment of volunteers. Let's join our h ands and take action immediately.