n.冷静；凉快；冷淡；厚颜无耻 英英释义： coolness[ 'ku:lnis ]n.the property of being moderately cold同义词：chillinessnipcalm and unruffled self-assurance"he performed with all the coolness of a veteran"同义词：imperturbabilityimperturbablenessfearless self-possession in the face o