How could we decorate the room to liven it up?我们怎么才能把这房间装饰得更有生气呢？The multicoloured rag rug was chosen to liven up the grey carpet.选择这块五彩缤纷的碎呢小毯是为了给这灰色的地毯添些生气。Variety of methods helps to liven up a lesson.教学方法多样化会使教学更加生动....