e used to do sth 被用来做某事
The wood can be used to make paper.
be used to doing srh 习惯于做某事
He is used to getting up at 7
used to do sth 过去常常做某事
He used to be a teacher
be used for (doing)sth 被用来做某事
The wood can be used for(making) paper.
e used to do sth 被用来做某事
The wood can be used to make paper.
be used to doing srh 习惯于做某事
He is used to getting up at 7
used to do sth 过去常常做某事
He used to be a teacher
be used for (doing)sth 被用来做某事
The wood can be used for(making) paper.