6 sentences

1. 他在学校加入了空手社团。

   tā zài xué​xiào jiā​rù le kōng​shǒu shè​tuán.

   He joined the karate club at school.

   Source: Dong Chinese Dictionary

2. 他在大学里加入了跆拳道社团。

   tā zài dà​xué lǐ jiā​rù le tái​quán​dào shè​tuán.

   He joined the Taekwondo club in university.

   Source: Dong Chinese Dictionary

3. 他在校期间经常参加各种社团活动。

   tā zài xiào qī​jiān jīng​cháng cān​jiā gè zhǒng shè​tuán huó​dòng.

   During his time at school, he often participated in various club activities.

   Source: Dong Chinese Dictionary

4. 大一新生们正在操场上招募社团新成员。

   dà​yī xīn​shēng men zhèng​zài cāo​chǎng shàng zhāo​mù shè​tuán xīn chéng​yuán.

   Freshmen are recruiting new members for clubs on the playground.

   Source: Dong Chinese Dictionary

5. 他们是法国的一个秘密社团。

   tā​men shì Fǎ​guó de yī gè mì​mì shè​tuán.

   They're a secret society in France.

   Source: OpenSubtitles

6. 这家非营利性社团致力于保护当地的生态环境。

   zhè jiā fēi yíng​lì​xìng shè​tuán zhì​lì yú bǎo​hù dāng​dì de shēng​tài huán​jìng.

   This non-profit organization is dedicated to protecting the local ecological environment.

   Source: Dong Chinese Dictionary