重点讲解：
1. be happy to do sth. 乐意的；情愿的；
例句：If it would facilitate matters, I would be happy to come to New York.
如果对事态发展有利，我很乐意来纽约P|gJx0(xYeS0k^yY0N。
2. in jeopardy 处于危险境地；受到威胁；
例句：This kind of ethnic rivalry is clearly a serious issue that is placing economic growth and development in jeopardy.
这种种族的敌对状态显然是一个严肃的问题，使经济的增长与发展处于危险的境地*vpq%PO]z8YjWU。
3. opt to do sth. 选择；作出抉择；
例句：Our students can also opt to stay in residence.
我们的学生也可以选择住校l9JaFopexJ.^o0。
4. dine on 以…为正餐；
例句：My daughters could dine on caviar and champagne for the rest of their lives.
我的女儿们后半辈子可以天天吃鱼子酱、喝香槟了Y|#5nNU]Fa,jtV。
5. at best 充其量；顶多；至多；
例句：This policy, they say, is at best confused and at worst non-existent.
有人说这项政策往好里说是混乱不堪，往坏里说就是形同虚设#;2t9HRxW5|W[k^o.@95。
我的女儿们后半辈子可以天天吃鱼子酱、喝香槟了VY;h(|BiRu。