The craze for roller skating spread throughout the U.S.滑旱冰在全美风靡一时。The U.S. trade deficit hit a record $ 152 thousand - million that same year.1987年美国的贸易逆差创历史最高纪录,达到1520亿美元.There are extensive coal deposits in the U.S.S.R...
No running, no chasing, no littering, no smoking and no eating.场内不准奔跑 、 追逐, 不准乱扔杂物 、 吸烟及饮食任何形式的食物.She was silent for a while, lost in thought, staring at the books littering the room.一时间她默不作声，直想得入了神，双眼直愣愣地盯着房间里扔得到处都是的书。I...