如何使用 "join" 造句

1. May I join in the conversation ?
我能不能加入你们的谈话?
2. The president had arranged to join a picnic party .
总统还曾准备参加一个野餐聚会。
3. Technology allows poor people to join the global market .
科技使得穷人也能参与到市场经济。
4. The 60-strong staff of the fund will join blackstone .
基金的60多名员工将入职百仕通。
5. Essentially , this query is an inner join , only less efficient .
事实上,这个查询除了效率不够之外,完全就是个内连接。