Princess Margaret would likely be wearing a strapless bra and a pair of high-waist panties or a panty girdle.

- 玛格丽特公主可能会穿着无肩带文胸和一条高腰内裤或束腰带。

In terms of underwear in the 1940s, panty girdles were the norm, though panty girdles were generally constricting and not conducive for playing sports.

就 1940 年代的内衣而言，内裤腰带是常态，尽管内裤腰带通常很紧，不利于运动。

The panty girdle was worn to shape the body into the fashionable silhouette, which during this period included a nipped waistline and slender hips.

穿紧身裤腰带是为了将身体塑造成时尚的轮廓，这一时期的轮廓包括收紧的腰线和修长的臀部。

First up, undergarments - Because she doesn't need to be particularly active in this ensemble, we can assume that Dottie is wearing a standard brassiere and panty girdle.

首先是内衣——因为她不需要在这套服装中特别活跃，我们可以假设 Dottie 穿着标准的胸罩和紧身裤。