She sells sea shells on the seashore, and shells she sells on the seashore are all sea shells I am sure.她在海边卖海贝壳,她在海边卖的贝壳是海贝壳,我敢肯定。
Good cookies could be cooked by a good cook if a good cook could cook good cookies.如果一位好厨师能够做好家常小甜饼的话,那么好的家常小甜饼是能够由这个厨师做出来的。