Couples attend a group wedding on campus at the Beijing Institute of Technology on Sunday, June 10, 2018. Eighteen pairs of postgraduate students have taken part in the campus wedding, with families and friends attending the ceremony before their graduation. [Photo: VCG]

Couples attend a group wedding on campus at the Beijing Institute of Technology on Sunday, June 10, 2018. Eighteen pairs of postgraduate students have taken part in the campus wedding, with families and friends attending the ceremony before their graduation. [Photo: VCG]

Couples attend a group wedding on campus at the Beijing Institute of Technology on Sunday, June 10, 2018. Eighteen pairs of postgraduate students have taken part in the campus wedding, with families and friends attending the ceremony before their graduation. [Photo: VCG]

Couples attend a group wedding on campus at the Beijing Institute of Technology on Sunday, June 10, 2018. Eighteen pairs of postgraduate students have taken part in the campus wedding, with families and friends attending the ceremony before their graduation. [Photo: VCG]