1.be used to doing sth.(习惯于做某事）I'M USED TO HAVING A CUP OF TEA IN THE MORNING.我习惯每天早上和杯咖啡.2.used to do sth.（过去常常做谋事）I USED TO LOVE HER.我曾经很爱她.3.be used to do sth.(被用...