[cān jiā]
（加入） join; attend; take part in; participate in; go in for; partake in [of] sth. with sb.; have hand in; enter into
participate in the discussion
参加讨论
attend a meeting
参加会议
join the Party
参加党
take an active part in recreational activities
积极参加文娱活动
Most students in our class go in for scientific activities.
我们班上大多数学生参加各项科学活动。
（提出意见） give (advice, suggestion, etc.)
Come and give us your view on the matter, won't you?
这件事你也来参加点意见吧。