keep up

1. hold up核心含义：① 举起(具体物品);② 阻挡、耽搁(交通/进程);③ 抢劫(非正式用法)高考常考搭配：hold up the traffic 堵塞交通;hold up a plan 耽搁计划例句：The flight was held up by bad weather. 航班因恶劣天气延误。2. keep up核心含义：① 维持、保持(状态/

过去常常的英文：used to参考例句：We used to ride douBle on nancy's horse我们过去常常两He used to keep up late into the night.他过去常常熬到深夜。They used to sizzle each other他们过去常常互相谩骂。The Vikings used to

黑马的英文：a dark horse参考例句：The black horse couldn't keep up with the others.那匹黑马追不上其他的马匹。Will you saddle the black horse for me?请你替我把黑马的马鞍放好，好吗?I'll bet a dollar on the black ho

Hi, everybody.I'm here on the factory floor of a business in Hatfield, Pennsylvania, where folks are working around the clock making toys to keep up with the Christmas rush. And I came here because, back in Washingt