她知道我买了我的第一个胸罩，没有征求她的建议。

She knew that I had bought my first ___bra without having asked her for advice.

我需要买一个新的胸罩，因为旧的已经磨损了。

I need to buy a new ___bra because my old one is worn out.

她锻炼时更喜欢穿运动胸罩。

She prefers wearing a sports ___bra when exercising.