短语词组短語deferral deferment 遞延項目deferment t 拖遲;延期Deferment Payment 緩繳deferment charge 逾期費deferment period 延緩期間educational deferment 延期服兵役Deferment account 延期賬戶deferment index 遞延指標deferment factor 延遲因素;[油氣]延期率 返回 deferment