Tā bǎ gōngzuò hé xìngqù hé'èrwéiyī, guò de fēicháng chōngshí.
He merged his work and his hobby into one, and lives a very fulfilling life.
Tips
usage
Often used for merging organizations, plans, or concepts. The apostrophe in 'hé'èrwéiyī' separates 'é' from the next syllable 'èr' per Hanyu Pinyin orthography.
memory
Literally 'combine two, make one' — the characters read in order tell you the meaning.