An

make an effort 力求 pull an all-nighter 开夜车；熬夜；熬夜通宵 to an extent 扣押令；在(某种,一定,很大)程度上(范围里) come to an end 结束 with an eye to 着眼于, 对...有企图 make an appearance 露面,出席,到场 on an impulse on average 平均起来 once in a while 偶尔 on impulse 一时冲动；一时心血来潮；冲动的 many a 许多 an apple a day an apple a day keeps the doctor away 一日一苹果，医生远离我 an arm and a leg 代价昂贵的,贵得出奇,高昂的代价 an Englishman's home is his castle