After all, existing jobs open up every day due to promotions, resignations, terminations, and retirements.
毕竟，现有的工作岗位每天都会因为晋升、辞职、解雇和退休而出现空缺。
3
Despite a steadily growing student population and an increasing number of teacher resignations, however, Newtown does not face a shortage in the late 1990's.