点击下方单词,选择对的这个单词
点击下面链接下载与本句相关的学习资源，包括PDF教材和音频练习，方便课后复习：
1. a lack of affection or enthusiasm
e.g. a distressing coldness of tone and manner
Synonym: coldnesscoolnessfrigidityfrigidnessiciness
2. the property of being moderately cold
e.g. the chilliness of early morning
Synonym: coolnessnip
多通过句子记忆单词，而不是单独死记硬背。
