核心词议：

速记方法


知识扩展


中文词源： backorder
精选例句

常见考点例句：

As demand heats up , lyons said some of her styles are on backorder but promises to fulfill each order as quickly as she can .

随着需求的上升，有些饰品现在缺货，但她承诺会尽快完成所有订单。