...shows how many times a quantity must be multiplied by itself...
fairies exist? ie that there are really fairies? 你 相信真有小神仙吗? *| The idea exists only in the minds of poets. 这种想法是诗人才有的. *| laws that have existed for hundreds of years 已存在千百年的法规 *| Does life exist on Mars? 火星上有生命吗? (b) be found; occur 被发现...