重点讲解：
1. it's sb's turn to do sth.
（依次轮流时的）轮班，次序，轮番；
eg. It's your turn to nail your colours to the mast.
该你阐述你的观点了。
eg. Now, it's Dynamo 's turn to attack.
现在轮到迪纳摩队进攻了。
2. the opposite of
对立物；对立面；
eg. But they always get the opposite of what they want.
但总是事与愿违。
eg. The argument contained herein takes exactly the opposite point of view.
本文所持的论点恰恰是站在相反的立场。
3. clear up
解决（问题）；消除（误会）；揭开（谜团）；
eg. There should be someone to whom you can turn for any advice or to clear up any problems.
应该有个你可以事事请教或帮助你解决一切难题的人。
eg. During dinner the confusion was cleared up: they had mistaken me for Kenny.
吃晚饭时疑惑消除了：原来他们把我当成肯尼了。
