She was startled when Lisa popped up at the door all smiles.
莉萨突然笑容满面地出现在门口时，她吓了一跳。
2.fire up 热情高涨
The president knows his task is to fire up the delegates.
总统知道自己的任务就是唤起代表的热情。
3.out of power 停电
In case it's out of power, operate it manually.
若没电了，就用手动方式操作。
4.infected with 感染
As many as ten-million children will have been infected with the virus by the end of the decade
到这个十年结束时，多达千万的儿童将会感染上这种病毒。
5.speed up 加快
I had already taken steps to speed up a solution to the problem
我已经采取措施加快解决该问题。
