one more dollar 是单数。再来一美元。
one more +单数名词 表示单数。
Not one more dollar for the workers
工人们连一美元也没有。
"I'll play again， " she said digging in her pocket for one more dollar.
"我再来一份"，她说道并在口袋里再掏一美元。
It's difficult to find one more dollar in a sentence.
用one more dollar造句挺难的。
