hypocaust
hypocaust[ˈhʌɪpə(ʊ)kɔːst]noun- a hollow space under the floor of an ancient Roman building, into which hot air was sent for heating a room or bath
(古罗马)地底供暖火坑
语源- from Latin hypocaustum, from Greek hupokauston 'place heated from below', from hupo 'under' + kau- (base of kaiein 'to burn')
考试词汇表