My favorite Bio-essence product is Bio-essence sleeping mask because after I finish using sleeping mask, my face is, it always feels like very hydrated and very firm.

我喜欢的剀伊秀产品是剀伊秀睡眠面膜，因为在我用完睡眠面膜后我的脸会变得水润有弹性。

youdao

His face is rigid like a mask.

他的脸像个面具一样僵着。

youdao

Grim amusement came on his face like a mask.

狞恶高兴的神色象假面具似的笼罩住了他的脸。

youdao

It seems unlikely that a smartphone application, as opposed to more tried-and-tested methods like vaccination or a face mask, could help you avoid going down with a dose of the flu this winter.

BBC: Can crowdsourcing beat the flu?

He wears a thick, curly mustache, and his face is long and straight, like a Balinese mask.

NPR: Movie Madness (Some of it Genius) for the Holidays

They lectured him not to skip evening doses, taught him how to give himself intravenous medicine, and warned him to put on a face mask when he was in confined public spaces, like a store or bus.

NPR: Developing New Drugs for Infectious Disease