72.The new generation of phones has features that can be used for teaching purpose.
73.technical foul 技术犯规///free throw 罚球///field goal 进球得分///three-point shot///out-of-bound 界外
74.Believe you me! 你最好相信我!
75."settle for sth" means reluctantly accept sth that is not so satisfactory.
76.credibility problem
77.The fact has silenced the doubters.
78.It's staging a remarkable comeback.
79.At Yahoo, spontaneity is out, order is in.
80.Wait a few years before we judge them as a group.