be used to do 和be used to doing的区别？

be used to do意思是某物被用来做某事；be used to doing意思是某人习惯于做某事。

如果是sth be used to do，是某物被用来做某事，如果是sb be used to do，是某人过去常常做某事，而be used to doing主语只能用sb，意思是某人习惯做某事

used to do 过去常常做某事 He used to live in London.
be used to do 被用作做某事 Knives are used to cut food. 被动语态
be used to doing 习惯做某事 I'm not used to eating so much at lunch time

be used to do 是指被用于做某事
be used to doing 是指习惯于做某事
O(∩_∩)O~