cold frame怎么读，是什么意思，单词翻译、读音
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英语单词:cold frame
意思翻译
cold frame
noun [ C ] uk/ˈkəʊld ˌfreɪm/ us/ˈkoʊld ˌfreɪm/
（用来保护秧苗的）冷床，阴畦
a glass or plastic box, with a top that can be left open, into which young plants are put for a short time, especially in order to help them grow faster or to protect them from cold weather