六级听力核心词汇英语六级听力八类关键词答:◆七、情态动词:sb. has got to, can, could, may, might, need, should, ought to, etc。◆八、重要形容词:表示重要的词,important, crucial, chief, major, significant, the only, unique, essential, necessary, vital, etc。【附:英语听力高频词汇】bill ◆1、账单,买单。I will pay...