重点讲解：
1. on and on
不停地；继续不断地；
eg. Lobell drove on and on through the dense and blowing snow.
洛贝尔冒着纷飞的大雪不停地往前开。
eg. He worked on and on all night.
他连续不断地干了个通宵。
2. be sick and tired of
厌倦的；厌烦的；厌恶的；
eg. I am sick and tired of hearing all these people moaning...
我厌倦了听这些人大发牢骚。
eg. I was sick and tired of the unending secrecy.
我对这种讳莫如深的神秘气氛感到十分厌烦。
3. blab about
泄露（秘密）；
eg. Her mistake was to blab about their affair.
她错在说出了他们的婚外情。
eg. If your friend tells you something in confidence, don't blab about it to everyone else.
如果你的朋友秘密地告诉你某件事情，不要将它泄露给任何人。
4. never mind
没关系；不要紧；没什么；
eg. Well, never mind, John, it's not a matter of life and death.
好了，约翰，别太在意了。这又不是什么生死攸关的大事。
eg. Never mind, I won't tell on you.
别担心，我不会告发你。
