joined mark

例句：

1. 1. They joined handsto form a circle.
   他们手拉手形成一个圆圈。
2. 2. The two teams joined forces todefeat the opponent.
   两队联合起来击败对手。
3. 3.After joining the club, she felt moreconfident in her abilities.
   加入俱乐部后，她对自己的能力更有信心了。