例句與造句

1. With the economic changes that have affected the city, the " Professions and Socio-professional categories " ( PCS ) have changed dramatically since the 1980s : between 1982 and 1999, the number of workers has declined by about a third (  " 10, 593 ), their share of the active labour force was 16 % in 1982 and 12.5 % in 1999 . The population of workers is concentrated in the southern suburbs close to the port and the industrial zone.
2. It's difficult to find active labour force in a sentence. 用active labour force造句挺難的