Olá Fiorine!
Twin share/Twin shared accommodation - significa quarto com duas camas de solteiro/para ser dividido por duas pessoas:
"Some students may be offered accommodation in a
twin shared room for a temporary period at the beginning of the year.(...) A
twin shared room is a single study bedroom in a Hall of Residence
with two beds, allowing two students to share the room and its facilities for a temporary period. As some of the facilities are being shared, the room is offered at a reduced rate of rent for the period where two students are in residence." (
http://www.southampton.ac.uk/accommodat ... hared.html)
Também encontrei um site dizendo que pode significar um quarto com uma casa de casal (ou seja, para ser dividido/ocupado por duas pessoas também:
"a) Twin Sharing Rooms comes with 2 types of bed combinations; 2 single Beds or 2 double beds.
B) Many Airlines Holiday Packages also offer Twin Sharing: where double the price of the room is charged for single person, or if two person's travel the price would be half person."
http://www.answers.com/Q/What_does_twin ... ation_mean3-night accommodation with air-conditioning, hot shower, mini bar, seaside balcony, room safe, twin sharing.
Acomodação por 3 noites com ar condicionado, água quente/chuveiro com água quente, mini bar, varanda com vista para o mar, quarto seguro, para duas pessoas (
ou) podendo ser dividido por duas pessoas.
Espero ter ajudado!