重點講解：
1. in the middle of 中部；中央；中間；
例句：Howard stood in the middle of the room sipping a cup of coffee.
霍華德站在房間中央，小口抿著一杯咖啡3lzNSKm,DV!。
2. hang out 閑逛，逗留；
例句：I often used to hang out in supermarkets.
我過去經常在超市里逛個沒完gWbMTAc.3hV2FA(Y。
3. close off 隔絕；封鎖；
例句：The workmen closed off the street for repairs.
工人們將大街封鎖進行翻修r(OMnil*Fjrg2=wY。
4. each other 彼此；互相；
例句：They took out their resentments on each other.
他們互相發泄怨氣.xIbxKs9M(J。
5. be interested in 感興趣的；有興趣的；關心的；
例句：He is not interested in second hand information.
他對間接的消息不感興趣Nb@B~vY,QMD[+T]。