Field	Type	Indexed	Description	Example
publishDate	date	Yes	The date that the new is published	"publishDate": "2025-01-20T16:28:59+08:00"
imageUrls	string[]	No	The URL for downloading the news photos	"imageUrls": ["https://isw.um.edu.mo/nrs/faces/binary?id=CFrlLfNan3K1jAWssBEqVnqyKGvV_2FUPqbHf8DJDPFXU_3D","https://isw.um.edu.mo/nrs/faces/binary?id=CFrlLfNan3K1jAWssBEqVnqyKGvV_2FUPq6dmwGTF6sdY_3D","https://isw.um.edu.mo/nrs/faces/binary?id=CFrlLfNan3K1jAWssBEqVnqyKGvV_2FUPqFM_2BxcbCQDOc_3D","https://isw.um.edu.mo/nrs/faces/binary?id=CFrlLfNan3K1jAWssBEqVnqyKGvV_2FUPqUhBgMB0L7uA_3D"]