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天文学
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天文学
Encyclopedia
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研究宇宙及其包含的物质、时空与能量的科学。
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retinoscopy
retinula
retinyl palmitate
retinyl palmitate; vitamin A palmitate
Retire
retired servicemen medical insurance
retired servicemen old-age insurance
retirement
retirement age
retirement syndrome
retirement system
Retirement System for the Employees of Public Institutions
Retiro Park
retort
retouching
retrace
retract
retractable enclosure
retractable undercarriage test
retracted confession
retractibility
retractible
retractible neighborhood
retracting deformation
retracting transformation
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