冁然一笑chǎn rán yī xiào

冁然：笑的样子。形容高兴地笑起来。laugh for joy

• workday
• worker
• workload
• workman
• workmate
• workpiece
• workplace
• works
• workshop
• world
• world-wide
• worldly
• worldwide
• worm
• worn
• worried
• worry
• worse
• worsen
• worship
• worst
• worth
• worthless
• worthwhile
• worthy