So dogged were Frances Perkins' investigations of the garment industry, and her lobbying for wage and hour reform was persistent, Alfred E. Smith and Franklin D. Roosevelt recruited Perkins to work within the government, rather than as a social worker.
So dogged were Frances Perkins’ investigations of the garment industry, and her lobbying for wage and hour reform was persistent, Alfred E. Smith and Franklin D. Roosevelt recruited Perkins to work within the government, rather than as a social worker.
and her lobbying for wage and hour reform was persistent,
and lobbying for wage and hour reform was persistent, so that
her lobbying for wage and hour reform persistent, that
lobbying for wage and hour reform was so persistent,
so persistent her lobbying for wage and hour reform, that(两个so不用and连接么…)