In this case, it's not so much a vanity phenomenon, I think.

在这种情况下，它不是这么一个浮华的现象，我觉得。

youdao

If refill is used without a vanity display case, make sure to reseal after each use.

若产品(料)是在没有摆放盒的状态下使用的，则要确保每次使用后再密封。

youdao

Suze glances up at my wardrobe, on which are teetering a brown leather case, a lacquered trunk, and three vanity cases.

Suze抬头望了一眼我的衣橱，橱顶上放着一只褐色的皮箱，一只漆皮的大皮箱和三只手提箱包。

youdao

Yet the very banality of his character his vanity, his garrulousness, his guilt makes him a rather heartening case.

NEWYORKER: The Oath