they可以表达为第三人称单数。
theypron.他们;她们;它们;用以代替he或she，指性别不详的人;(泛指)人们，人人，众人
例句
They won by a single goal after extra time.
他们在加时赛中仅踢进一球即获胜。
The treatment they gave him did him more harm than good.
他们的治疗对他弊多于利。
They\'ve increased the price by 50%.
他们已经把价格提高了50%。
