Tony, play with the mobile phone while (当……时候) you’re walking in the street.

air quality in urban areas from one to five:excellent, fairly good, slightly polluted, poor, and dangerous

I enjoy playing computer games, but I can’t ______ too much time ________ that.

They advocate the proposal we were opposed ______rediscussed at the next meeting.

Let’s play computer games.— No. That sounds______.