join 加入組織 機構 黨等比較長期的東西
例句:He joined the Party last year.
他去年入了黨.
Every young man in the village joined the battle.
村里的所有年輕男子都參加了戰(zhàn)斗.
join in = take part in = participate in
participate是不及物動詞喔 所以坐參加的話還應加個in
這些參加表示加入那些 加入一次 就解散的東西 比如活動啦 等等
例句：
More than six million Germans and tourists take part in Oktoberfest each year to eat,drink,and celebrate.
每年皆有超過六百萬的德國人和游客參加啤酒節(jié),一同吃喝玩樂并大肆慶祝.
attend 比較正式的場合用 一般口語不用
是指出席的意思,你就想一般什么場合用出席 就是用attend
be present at (meetings,church services,university),etc.
例句:She attends class regularlyI rarely attend services at my church
to attend a concert
去聽音樂會
to attend church
上教堂做禮拜