实战口语情景对话 第344期:Batteries 电池

重点讲解：
1. run out
用完；耗尽；
eg. His term of office has run out.
他的任期已满。
eg. Our time is running out.
我们剩下的时间不多了。
2. on hand
在手头；在近处；现有；
eg. He has too much work on hand to go picnicking with us.
他手头的工作太多了，不能跟我们去野餐。
eg. I always like to keep a certain amount of money on hand.
我总喜欢在手头备好一笔钱。
3. get into the habit of
养成……习惯；
eg. We should get into the habit of keeping good hours.
我们应该养成早睡早起的习惯。
eg. We should get into the good habit of using our time wisely.
我们应该养成明智利用时间的一个好习惯。
4. keep on
重复；继续；
eg. And then keep on challenging yourself, because learning doesn't end with graduation.
然后要继续挑战自我，因为学习不是到毕业就终止了。
eg. I have failed several times, but I still keep on.
我已经失败了好几次，但我仍然要继续下去。