词汇	面露難色
释义	面露難色变体面露难色
随便看	vulnerable children vulnerable children education vulnerable child syndrome vulnerable college students vulnerable community vulnerable component vulnerable country vulnerable degree vulnerable ecological region vulnerable ecological regions vulnerable eco-region vulnerable european option pricing vulnerable families Vulnerable Greup vulnerable group Vulnerable Group among College Students vulnerable group of society vulnerable groups Vulnerable Groups among College Students vulnerable groups among involuntary migration vulnerable groups in rural areas vulnerable groups in the country vulnerable groups of college students Vulnerable Groups of Jobless Vulnerable Groups of Rural Elderly