they的意思是什么

　　例句：

　　They won by a single goal after extra time.

　　他們在加時賽中僅踢進一球即獲勝。

　　They're researching into ways of improving people's diet.

　　他們在研究如何改進人們飲食。

　　They'll respect you as long as you play fair.

　　只要為人正直，別人就會尊敬你。