Two union-funded groups have set up Web sites and launched grassroots campaigns aimed at drawing attention to what they consider stingy wages and benefits for Wal-Mart workers.

• 两家由工会支持的团体已经建立了网站,并发动了草根运动，旨在引起人们关注在他们看来非常低微的沃尔马工人的工资和福利待遇。