and flared trousers. / for Vietnamese people / During the eighties, / the most common outfit / was a loose shirt ________________________________________________________________________

During the eighties, the most common outfit for Vietnamese people was a loose shirt and flared trousers.

and flared trousers. / for Vietnamese people / During the eighties, / the most common outfit / was a loose shirt

→ During the eighties, the most common outfit for Vietnamese people was a loose shirt and flared trousers.

Cấu trúc so sánh nhất “the most + adj + N”: cái gì đó nhất.

Dịch: Trong những năm 80, trang phục phổ biến nhất của người Việt là áo sơ mi rộng và quần ống loe.