Definition: to become a member of a club, group, or organization Level: A2
我想加入一家健身房来保持健康。
I want to ___join a gym to get fit.
你为什么不加入我们的俱乐部？真的很有趣。
Why don't you ___join our club? It's really fun.
如果你能加入这个美术班就太好了。
It would be great if you could ___join the art class.
