hard labour

(imprisonment with) heavy physical labour as a punishment 劳役; 苦役: be sentenced to ten years' hard labour 被判处服十年劳役.

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, hard court, hard cover, hard currency, hard disk, hard drug, hard of hearing, hard porn, hard sauce, hard shoulder, hard water, hard-and-fast, hard-bitten, hard-boiled, hard-headed, hard-hearted, hard-hitting, hard-line, hard-liner, hard-nosed, hard-pressed, hard-top, hard-wearing, hard-working, hardback, hardbitten,