读音一样, 都读[ɒ]音。

It's very hot here in summer.这里夏天很热。The night was hot and airless.夜晚很热，没有一丝风。Do you like this hot weather 你喜欢这种炎热的天气吗？I edged nervously past the dog.我紧张不安地从狗旁边慢慢走过去。My dog likes chasing rabbits.我的狗喜欢追捕兔子。The dog sat licking its chops.那只狗坐着在舔嘴。He could hear a dog barking.他听得到狗叫。

dog 和 hot 都是只有一个元音字母并以辅音字母结尾的闭音节，字母 o 发短元音 [ɒ]。

dog 读作 [dɒg]，hot 读作 [hɒt]。