zhè / gè / rèshuǐpíng / bǎowēn / xiàoguǒ / hěn / hǎo / fàng / le / yí / yè / shuǐ / háishì / rè / de

这个热水瓶保温效果很好，放了一夜水还是热的。

This thermos has good heat preservation; the water is still hot after being left overnight.