?周期性失业率
... cyclical deposits 循环沈积 cyclical depression 周期性失业率 cyclical deviation 循环离差 ...
Light is used to treat medical conditions including seasonal affective disorder a cyclical depression often tied to low sunlight as well as skin, eye and gastrointestinal conditions.
WSJ: As More Adults Get Acne, New Photodynmic Treatments Use Light
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。