subbing

英['sʌbɪŋ] 美['sʌbɪŋ]
  • n.做代替者(地下灌溉;胶层)
Noun:
  1. working as a substitute for someone who is ill or on leave of absence

    1. I had to sub for the referee, who was sick.
      裁判病了,我得代为裁判。