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1. 沉思：7、see the lions 游览名胜 | 8、be in a brown study 沉思 | 9、be not worth a straw 毫无价值
2. 沉思默想;空想：brown nose 逢迎上司;拍马屁 | be in a brown study 沉思默想;空想 | to feel blue/in the blues 情绪低落;沮丧
3. 空想, 沉思：be in a blue funk || 不胜惊恐 | be in a brown study || 空想, 沉思 | be in a certain condition || 有喜, 有孕
4. 沉思默想;空想;幻想：brown ware陶器 | be in a brown study沉思默想;空想;幻想 | 3.green绿色