3 sentences

1. 他从这次经验中得益匪浅。

   tā cóng zhè cì jīng​yàn zhōng dé​yì fěi​qiǎn.

   He benefited greatly from this experience.

   Source: Dong Chinese Dictionary

2. 参加这次研讨会让他获益匪浅。

   cān​jiā zhè cì yán​tǎo​huì ràng tā huò​yì fěi​qiǎn.

   Participating in this seminar benefited him greatly.

   Source: Dong Chinese Dictionary

3. 这次精彩的讲座让我获益匪浅。

   zhè cì jīng​cǎi de jiǎng​zuò ràng wǒ huò​yì fěi​qiǎn.

   I benefited greatly from this wonderful lecture.

   Source: Dong Chinese Dictionary