He started singing, and I joined in. ?
He began to sing, and then I sang along.
2. You must join the Party at the grassroots level. ?
You have to join the grassroots party organization.
3, cadres to different grass-roots units to participate in labor. ?
Cadres go to grass-roots units to participate in labor respectively.
Second, participation refers to participating in an activity or thing and actively participating; Join generally refers to entertainment activities or events, and the activities have already begun when you participate.
1, you don't have to join in; There are enough people doing this job. ?
There are enough people, so you don't have to intervene.
The main rebel groups have agreed to attend a meeting to establish a transitional government. ?
The main rebel groups have agreed to attend the meeting to discuss the establishment of a transitional government.
You can take part in activities ranging from canoeing to bird watching. ?
You can take part in all kinds of activities, from canoeing to bird watching.
Third, the pronunciation is different.
Join: English [d? n]； Beauty [d? n]
Participation: English [[[[teik pɑ:t in]；]; ]; Beauty [tek pɑrt? n]？
Join: English [din in]; Beauty [d? n？ n]？
Extended data
Synonym: participate in, participate in
I. Participation
English [pɑ:? Tisipeit in] beauty [pɑr? t？ spet？ n]
They expect him to attend the ceremony?
They want him to attend the ceremony.
Second, participate.
Britain [tends to be] beautiful [t? nd]
Attendance rate of intransitive verbs; Devote oneself to; Service, care; watch out for
Participate, participate; [Common passive voice] Accompany (as a result or situation); Take care of; accompany
We are forced to attend meetings every day?
We must attend the meeting every day.