dollar和dollars的区别?

dollar和dollars的区别? dollar和dollars有什么区别 10 dollars 和10 dollar有什么区别 buck和dollar的区别 20-dollar 与20 dollars的区别he won a ( ) prize in the competion应该是20-dollar 还是20 dollars?有什么区别? 恒生银行cash dollar和merchant dollar 的区别?我只知道cash dollar常规状态下是每消费250港币换一个 cash dollar ,cash dollar可以换礼品 但是merchant dollar又有什么用呢? 美国一个受贿的议员到底是翻译成十几千,几万,十几万还有tens of thousands of dollars’ worth of gifts 和tens of thousand dollar有什么区别 thousands of dollars,为什么thousands和dollars都加了s,dollar不是不可数吗? Aus dollar和USD dollar 有什么区别 I have three ___notes in my pocket.A five dollar's Bfive dollars两者的区别,该选哪个，为什么选那个先项？并说明理由 i sold the horse for 100 dollars.he sells the cloth at a dollar a yard.请问at for在表价格上的区别 short one dollar 和 one dollar short 有啥区别 最好给几个地道点的例句 dOLlar和yuan有什么区别 a few dollars和 very little money的区别是什么? dollar和yuan的区别wait a minute=?how much is that football=?enormous的用法 dollar和yuan 的区别 dollar的用法 Fifty dollars ( )in my pocket.中间Be动词填单数还是复数为什么. 1.68美元用dollar 还是dollars? one-million dollar还是one-million dollars