Ceq
abbr. carbon equivalent 碳當量
??? 情景例句
and he's very unhappy about not working.
他對沒有工作感到怏怏不樂。
Are you living in a dorm this term?
本學期你是住在學校宿舍嗎？
We also want to teach all the children to perform.
我們還想教會所有的兒童演奏。