1. The machine is operated through the keyboard.
    这种机器是通过键盘操作的。

2. He operated on my leg.
    他给我的腿动了手术.

3. Recently I operated in vain on an eighty -year-old woman with cancer of the liver ...
    最近，我给一位80岁的患肝癌的妇女动过手术，但没有成效。