1) He can do this.
他会做这个。
2) Do this.
做这个。
3) Who have done it ?
谁做了这个？
4) I'm good at it.
我做这个很在行
5) This one is made of pure gold
这个是纯金做的
6) It is not difficult to write this exercise.
做这个练习不难。
参考词条