the practice among some Muslims and Hindus of keeping women apart, and having them wear clothing that covers their bodies completely when they go out (伊斯兰教徒和印度教徒中的)深闺制度
His future wife would observe purdah. 他的未婚妻将遵循深闺制度。
Britisha time when a politician or other important person does not appear in public while working on matters that they want to keep secret (政治家或其他重要人物的)不公开露面