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。

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The leak could come from a poor fit between the mask and the user's face, or from a crack or hole somewhere on the mask.

漏气可能是由于穿戴着脸部和面具大小不合适，或者面具上有裂缝或漏洞。

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Respiratory protective devices - Compressed air line breathing apparatus for use with a full face mask, half mask or a mouthpiece assembly - Requirements, testing, marking.

呼吸保护装置。与全罩式面罩、半罩式面罩或口罩一起使用的压缩空气导管呼吸装置。要求、试验和标志。

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Shining treasures filled the tomb, including a solid gold mask of Tutankhamen's face.

VOA: special.2009.12.15

I always want to--modern football helmets which are monstrous-- I'm so old we used to play with leather ones without a face mask.

现代美式橄榄球的面具就跟怪兽一样的,我老了,我们小时候打球都是皮质头盔而且没有面具的

耶鲁公开课 - 古希腊历史简介课程节选

On the face of things, to call this mask Comus is absurd.

从表面来看，把《面具》叫做《Comus》很可笑。

耶鲁公开课 - 弥尔顿课程节选

Suddenly, he tore off his improvised face mask and, bending, vomited on his shoes.

NPR: Excerpt: 'Legends'

His mother (Anjelica Huston), her face a mask of rage, drives him nuts with her self-dramatizing anxieties.

NEWYORKER: Playing The Numbers

Filligent makes another product designed along intelligent-filtration principles, its BioMask anti-infection face mask.

FORBES: Designing A Safer Cigarette