hard-boiled

adj 1 (of eggs) boiled until solid inside （指蛋）煮老的. 2 (infml 口) (of people) callous; tough; unsentimental （指人）无情的, 强硬的, 无动於衷的.

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 labour, hard of hearing, hard porn, hard sauce, hard shoulder, hard water, hard-and-fast, hard-bitten, hard-headed, hard-hearted, hard-hitting, hard-line, hard-liner, hard-nosed, hard-pressed, hard-top, hard-wearing, hard-working, hardback, hardbitten, hardboard, harden, hardened, hardheaded, hardiness, hardly, hardly any, hardly ever,