The computer has become much more accessible to the lay person.电脑对门外汉而言变得更加易于使用。There was a mad scramble for tickets.对门票的争抢非常激烈。There has been an unprecedented demand for tickets.对门票的需求是空前的。The dog responded to the stimulus of the ringing bell.这条狗对门铃声的刺激有反应。