happen on

巧遇；偶然发现

hangar, hangdog, hanger, hanger-on, hanging, hangman, hangnail, hangover, hank, hanker, hankering, hanky, hanky-panky, Hansard, hansom, haphazard, haphazardly, hapless, haporth, happen, happen to, happening, happily, happiness, happy, happy-go-lucky, hara-kiri, harangue, harass, harassment, harbinger, harbor, harbour, harbour (US harbor), harbour-master, harbourage (US harborage), hard, hard cash, hard copy, hard core,