能不能帮我区分一下attend, join, take part in, enter for的用法？

participate in
1. 参加
How many people participated in the opening ceremony?
多少人参加了开业典礼?

attend
vt.
1. 出席,参加
He did not attend the meeting yesterday.
昨天他没有参加会议。
2. 上(大学等),前往
The school was attended almost entirely by local children.
上这个学校读书的几乎全是当地的孩子。
3. 照料;护理;侍候
There was no one to attend him but Tina.
除了蒂娜,再无人照顾他了。
4. 伴随,带有
5. 陪同,护送
vi.
1. 出席,参加[(+at)]
2. 照料,处理[(+to)]
I'll attend to the matter.
我来处理此事。
3. 护理;侍候[(+on/upon)]
4. 注意,倾听;致力(于)[(+to)]
She didn't attend to what I was saying.
她并不注意听我所说的话。

join
vt.
1. 连结;使结合[(+to/together/up)]
He joined the two pieces of wood together with glue.
他用胶水将这两块木料粘在一起。
2. 与...会合;与...交接
This path joins the highway up ahead.
这条路在前面与公路相接。
3. 和...一起做同样的事;和...作伴[(+in/for)]
Will you join us for dinner?
你和我们一起吃晚饭好吗?
4.