Tā pǎo wán mǎlāsōng hòu hànliú-jiābèi, què yīrán miàndài wēixiào.
He was drenched in sweat after finishing the marathon, but still wore a smile.
Tips
usage
汗流浃背 can describe literal heavy sweating from exertion or heat, or figurative anxiety - like sweating through a tough interview or an embarrassing situation.