Think about all the other service workers we have in this community.We have people who collect waste and rubbish and keep our community sanitary.We have road workers who put up and repair traffic signs and fix holes in the streets to protect not just us,but our cars!And where would this community be without the teachers in our school and the doctors,and nurses in our community hospitals? 导航页导航页 Think about all the other service workers we have in this community. We have people who collect waste and rubbish and keep our community sanitary. We have road workers who put up and repair traffic signs and fix holes in the streets to protect not just us, but our cars! And where would this community be without the teachers in our school and the doctors, and nurses in our community hospitals?