今天做了不少寒假作业！
Winter vacation homework！

新单词
hot [hɒt] 热的
cold [koʊld] 冷的;感冒;伤风;着凉
vacation [veɪˈkeɪʃn] 假期

hot dog
cold water
a cold room/house
cold hands and feet
summer vacation
winter vacation

复习单词
Nine hundred and ninety nine.
Nine thousand nine hundred and ninety nine.
eleven twelve thirteen fourteen fifteen sixteen
seventeen eighteen nineteen twenty thirty forty
fifty sixty seventy eighty ninety holiday

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