重点讲解：
1. ask for 索要;请求，恳求（给予）；
It is common to ask for the equivalent of a month's rent as a deposit.
要求交一个月的房租作押金是很常见的3;pCa0H_rLd6;ohl。
2. focus on 集中(注意力)；关注；
Their talks are expected to focus on arms control.
他们的会谈预计会集中讨论军备控制问题NB6L^;QGjyd!FM98@P。
3. in custody 被拘留；在拘禁中；
At the last count the police in the Rimini area had 247 people in custody.
根据最近清点的结果，里米尼警方已拘押了247人6lb2Zt+[9R。
4. break out （战争、战斗或疾病）爆发；
I was in a nightclub in Brixton and a fight broke out.
当时我在布里克斯顿的一家夜总会里，那里发生了一场斗殴^aimBn4fH%Z_+。