This is 3-D printer. And this is an artificial (人工的) ear. Can you believe that scientists printed this artificial ear by this 3-D printer?

Donotyourpersonal information unless itisasafe website.

Do you know the boyis sitting next to Peter? -Yes,He is Peter’s friend,They are celebrating hisbirthday.

I’m interested in you have told me .

The lovely girl is from Class6. ____ name is Alice.