• I need some paper to write a letter. (我需要⼀些纸来写信。)(不可数)
  • I have to write a term paper tomorrow. (明天我得写我⼀篇学期论⽂。)(可数)
  • There’s no room for another person. (这⾥没有空间再装下⼀个⼈了。)(不可数)
  • There are four rooms in my house. (我家有四间屋⼦。)(可数)
  • a sheet of glass (⼀⽚玻璃)(不可数)
  • three glasses (三只玻璃杯)(可数)