one more dollar 是單數。再來一美元。
one more +單數名詞 表示單數。
Not one more dollar for the workers
工人們連一美元也沒有。
"I'll play again, " she said digging in her pocket for one more dollar.
"我再來一份",她説道並在口袋裏再掏一美元。
It's difficult to find one more dollar in a sentence.
用one more dollar造句挺難的。