重点讲解：
1. intend doing sth.
想要；打算；计划做某事；
eg. I didn't intend coming to Germany to work.
我没有打算来德国工作。
eg. He did not intend paying the bill.
他不打算付账。
2. all of a sudden
突然地；出乎意料地；
eg. All of a sudden he turned about and saw me.
他突然转过身来看见了我。
eg. I was sitting quietly reading when all of a sudden a stone came hurling through the window.
我正安安静静地坐着看书，突然从窗外飞来一块石头。
3. pipe up
（在沉默了一阵之后）开始说话，开始讲话（尤指说出令人吃惊或奇怪的事情）；
eg. 'That's right, mister,' another child piped up...
“没错，先生，”另一个孩子突然说道。
eg. At which point I piped up and asked whether it might be at all possible to have some positive input.
在此我插了一句询问这事儿是否会产生一些积极的投入。
4. jump out of one's skin
吓得魂飞魄散；大吃一惊；
eg. He nearly jumped out of his skin when he saw two rats.
他看到两只老鼠，几乎给吓丢了魂。
eg. The sudden explosion made me jump out of my skin.
突然的爆炸声把我吓坏了。
5. in the world
（尤用于强调惊讶或愤怒）究竟，到底；
eg. What in the world is he doing?
他究竟在干什么？
eg. Where in the world were you when I was struggling for my life?
我挣扎求生的时候，你究竟在哪儿？