二者都有“参加”的意思。
join多指参加某组织、党派或社会团体，成为其中的一个成员。
He joined the League in 1985 . 他在1985年入团。
join in 参加正在进行的竞赛、娱乐、谈话等活动。如:join us in the match;
take part in指参加活动、群众性活动或会议，并在其中起一定作用。
The old man took part in the Long March . 这位老人参加过长征。
下一篇： 区别bring take fetch
国内英语资讯:Top political advisor extends Spring Festival greetings to religious personages, believers
研究发现早起的人不容易抑郁
国内英语资讯:China to remain NYSEs major contributor of intl IPOs in 2019
国际英语资讯:Lebanese president calls for emergency meeting on security amid tensions
国际英语资讯:President Widodo officially declared winner of Indonesias poll
国内英语资讯:Xi extends festive greetings to all servicemen
国内英语资讯:Chinese study on quantum communication wins Newcomb Cleveland Prize
国际英语资讯:Yemeni warring factions meet over Hodeidah withdrawal for 2nd day
BBC推荐二月佳片：乐高小人、读心人、生化人同台PK
国际英语资讯:Russia to suspend INF Treaty after U.S. pulls out
国内英语资讯:Chinese leaders extend Spring Festival greetings to former leaders
国际英语资讯:Thailands top retailer to invest in ride-hailing app
国内英语资讯:China appreciates European countries efforts to maintain Iran nuclear agreement
国际英语资讯:New Zealands arms control law comes into effect
每逢佳节胖五斤？寒假长胖，开学要跑步！
国际英语资讯:Houthi rebels shell govt-controlled sites in Yemens Hodeidah
国际英语资讯:Brunei Sultan greets Chinese people for Chinese Lunar New Year
国际英语资讯:Dozens wounded in clashes with Israeli soldiers in West Bank, Gaza
吃早饭好,还是不吃早饭好
体坛英语资讯：Mbappe regarded as worlds most valuable football player in CIES report
国际英语资讯:Feature: Increasing number of Israelis learn Chinese for greater opportunities
国内英语资讯:Xis special envoy to attend 7th World Government Summit
国际英语资讯:Frigid cold, snow squall hit NYC
国际英语资讯:Feature: Chinese New Year casts fantastic lights on Serbian capital
国内英语资讯:Chinese premier congratulates on 65th anniversary of Icebreaking Mission in China-Britain tr
像当地人一样吃饭：盘点10个国家的餐厅礼仪
中国骄傲! 李娜入选国际网球名人堂
Zara换了个logo！网友对此并不感冒
国际英语资讯:Nigerian VP survives helicopter crash
体坛英语资讯：Gerardo Martino named as Mexico head coach