they use real mechines to()doing everything
1个回答

楼主估计是问used to 的问题吧,归纳如下:

1、use somethig to do something.用某种工具/方法去做某件事;

2、used to do sth.过去常常做某事;

3、get/be used to doing sth.习惯于做某事;(He is/gets used to getting up late.)

另外,楼主mechines应该打错了吧,machines.根据上述,应该选do,即they use real machines to do everything.(意为:他们用实机搞定一切.)