join的短語：

　　join in(v.+adv.)

　　參加,加入 take part in; participate

　　〔She burst into song.Several passengers also joined in.她唱了起來,幾位乘客也跟著唱了起來。

　　join together(v.+adv.)

　　將…拼〔連〕在一起 fix things into one whole

　　How does this model boat join together?這隻模型船是怎樣拼裝起來的?

　　join with(v.+prep.)

　　1.用…把…連線〔結合〕起來 be connected sth with sth

　　He joined two blocks of wood with glue.他用膠水把兩塊木頭黏合起來。

　　2.與…一同做某事 act together with; do the same thing as

　　He never joins with us; he always plays on his own.他從不和我們在一起,他總是自己單獨玩。