num. 二十;twenty
Each answer is worth 20 points.
每题为20分。
She had overshot by 20 metres.
她超过了20米。
He served 20 aces in the match.
他在这场比赛中发了20个爱司球。
The ship sank in 20 fathoms.
船沉在水下20英寻处。
He´s unbeaten in 20 fights.
他在20场拳击赛中没有被击败过。