1) They are taking part in a relay race.
他们参加接力赛。
2) Please take part in the relay race.
请参加接力赛。
3) He takes part in a swimming competition.
他参加游泳比赛。
4) He entered for field and track events.
他参加了田径赛。
5) He has scratched from the finals.
他没能参加决赛
6) They are going to join in the singing.
他们将参加唱歌。
补充资料：他们
1.代词。称自己和对方以外的若干人。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条