the audience at a stadium or racetracka stand at a racecourse or stadium consisting of tiers with rows of individual seats that are under a protective roof
同义词：covered stand
v.perform ostentatiously in order to impress the audience and with an eye to the applause
"She never misses a chance to grandstand"
英汉双解大词典
grandstand/ˈɡrænˌstænd/star1TEM4(grandstands)
1.
N-COUNT（可数名词）
A grandstand is a covered stand with rows of seats for people to sit on at sporting events. (体育赛事的) 看台