The new copiers only copy onto one side of the paper.
这批新复印机只能复印到单面纸上。
《柯林斯英汉双解大词典》
2
"Wait," said Mom, numbering the paperone to seventeen.
“等一下。”妈妈说，把纸从一数到十七。
3
Access to the Internet costs more, but compare these fees with just onepaper programming manual, engineering reference guide, or college textbook; the cost is absorbed in fewer than four books.