The match was going badly for McDonald, who seemed to be seriously off form.麦克唐纳似乎非常不在状态，比赛打得很不顺利。Any player who is off form is unlikely to be an asset to the side.任何竞技状态不佳的运动员都不太可能成为队里的主力。Her recent illness possibly explains why she was off form in this race.她最近生病可能是比赛中状态不佳的原因。