tā / zhōng / yú / zài / zhè / jiā / yán / jiū / suǒ / shì / dé / qí / suǒ / fā / huī / le / zì / jǐ / de / zhuān / cháng

他终于在这家研究所适得其所，发挥了自己的专长。

He finally found his niche at this research institute and put his expertise to use.