take part in (pt took) (pp taken)
⇒ 参加演讲比赛
(cānjiā yǎnjiǎng bǐsài) take part in a public speaking competition
⇒ 参加新年晚会
(cānjiā xīnnián wǎnhuì) attend a New Year's party
⇒ 参加了民主党
(cānjiāle Mínzhǔ Dǎng) join the Democratic Party
⇒ 去年他参加了民主党。
(Qùnián tā cānjiāle Mínzhǔdǎng.) Last year he joined the Democratic Party.