热水袋rèshuǐdàiMeanings1. hot-water bottleCharacters used热heat水water袋pouchExamples1在zài寒冷hánlěng的de冬天dōngtiān，热水袋rèshuǐdài是shì必不可少bìbùkěshǎo的de。In the depths of winter, a hot-water bottle is essential.