1、加入
... engage in参加，从事于 enroll in加入 equip with装备 ...
2、参加
... a handful of：一把，少量的 enroll in：参加；选课 on top of：另外；熟练掌握；在…之上；紧接着 ...
3、报名参加
... end up… 到达某处;结果处于某种状态 enroll in 报名参加 fall asleep 入睡 ...
enroll sb in注册
enroll l in登记
Enroll in business courses报读商业课程
Enroll In School注册在黉舍
Enroll In Night Classes参加夜校
to enroll in college录取上大学
enroll in evening classes上夜校
Enroll in dance competitions报名参加舞蹈比赛
to enroll in参加