penny基本解释
n,（美）分；便士,同近
Unleaded petrol rose more than a penny a gallon..无铅汽油每加仑涨了一个多便士。
（美）分；便士英释nna British unit of money or coin used until 1971. There were 12 pennies in one shilling
not a penny,不名一文，一分钱也没有.短语
