123. 每个月的单号我们都有一场比赛。
[误] We have a match on single-numbered days of each month.
[正] We have a match on odd-numbered days of each month.
注:single 是“单一的,单个的”意思如:single-eyed(独眼的),single-handed(独手的,单枪匹马的)等。而odd 才表示“单数的,奇数的”意思,如:odd houses(单号门牌的房子),odd month(有三十天的月份)等。