twice 英 [twaɪs] 美 [twaɪs] adv.两倍；两次用作副词 (adv.)I am more than twice as old as he.我的年龄是他的两倍还不止。The length of the table is twice its breadth.桌子的长度是它的宽度的两倍。I've seen this film twice.这部影片我已经看过两次了。We should brush our teeth at least twice a day.我们每天应该至少刷两次牙。
