Zikafika pakusunga zakumwa zotentha kapena zozizira popita, palibe chofanana ndi thermos yodalirika. Makapu otsekedwawa amakhala ndi gasket yolimba ya rabara kuti zomwe zili mkatimo zikhale zatsopano komanso zokoma. Komabe, m'kupita kwa nthawi, nkhungu imatha kumera pamagetsi a rabara ndikutulutsa fungo losasangalatsa, ndipo imatha ...
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