He was continually dreaming up new schemes to promote and enlarge the business.他不断想出奇特的新计划来促进和扩大业务。She had to keep thinking up new ways to hold the attention of her listless pupils.她得不断想出新花样来吸引那些无精打采的学生的注意力。He's got a bee in his bonnet about recycling.他脑子里不断想着回收再利用。