Each month thousands more swell the ranks of the unemployed.每个月都有数千人加入失业大军。Many farm labourers left the countryside and swelled the ranks of unskilled labourers in the cities.许多农工离乡出走，大大增加了城里非熟练工人的数量。The newly-arrived refugees swelled the ranks of the unemployed.新来的难民增加了失业的人数。