重点讲解：
1. set one's sights on 以…为奋斗目标；志在必得；决心做到；
例句：He has set his sights on acquiring the controlling interest in the company.
他的目标是取得能支配这家公司的股权(!G0v|qsI6。
2. be prone to 有（不好的）倾向的；易于…的；很可能…的；
例句：For all her experience, she was still prone to nerves.
尽管有经验，她还是容易紧张Q30.!e-j@#kQP#P。
3. be able to do sth. 可以…的，能够…的；
例句：Any knowledgeable wine merchant would be able to advise you.
任何一个懂行的葡萄酒商人都可以给你提出建议MmIRbqdkVaL5S。
4. keep sb. from doing sth. 阻止（或防止、阻碍）…做；
例句：The special medicine can keep him from worrying.
那种特殊的药能抑制他的忧虑LpTUpA)kUS4=oSY-;。