Mumamiriro ezvinhu akajairika, kana mvura iri mu thermos inogona kunwiwa mushure memazuva matatu inoda kutongwa maererano nemamiriro chaiwo. Kana mvura iri muvacuum flask iri mvura yakachena, uye chivharo chakanyatsonamirwa uye chakachengetwa, chinogona kunwiwa mushure mekutonga kuti ruvara, kuravira, uye pr...
Verenga zvimwe