重点讲解：
1. suffer from (因疾病或处于其他不利境地而)受苦，受难，受折磨；
Many immigrants suffer from a sense of alienation.
许多移民因感到不容于社会而苦恼K;4kdx4Ed,9zZ1eT-。
2. nothing but (用于名词、不带 to 的不定式或 -ing 形式前)只有，仅仅；
All that money brought nothing but sadness and misery and tragedy.
钱带来的只是悲伤、痛苦和灾难i.8,)Evq12YhRo。
3. break off 脱离；分离；
Hundreds later broke off from the rally and began hurling rocks and firebombs at police, who retaliated with tear gas to disperse the crows.
后来有数百人从集会中分离出来，并开始向警察投掷石块和燃烧弹VIs0L&mK=Wq|。警方用催泪弹予以还击，试图驱散示威人群.[ni)vgZ[M6[N#9l9n|。
4. get ahead 获得成功；
He wanted safety, security, a home, and a chance to get ahead.
他希望能获得人身安全和保障，能组建家庭并且有机会在事业上大展宏图P6iCs@x59u=9kjqaO。