hard

a.坚硬的；辛苦的 ad.努力地

hapless, haporth, happen, happen on, 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 cash, hard copy, hard core, hard court, hard cover, hard currency, hard disk, hard drug, hard labour, hard of hearing, hard porn, hard sauce, hard shoulder, hard water, hard-and-fast, hard-bitten, hard-boiled, hard-headed, hard-hearted, hard-hitting,