Dust masks are graded according to the protection they offer.
防尘面具根据其提供的防护而分级。
People have to wear thick masks almost every day.
人们几乎每天都要戴厚厚的口罩。
These masks and headdresses themselves are a very part of the art.
这些面具和头饰本身就是艺术的一部分。
National data masks the very large variation in the performance of individual universities.
全国的数据掩盖了个别大学表现的巨大差异。
Can masks help stop flu spread?
口罩对阻止流感传播有帮助吗？
Perhaps they were wearing masks?
或许他们戴着面具？
Look at those funny masks, Dad.
爸爸你看那些面具多有趣。
一定要戴上面具吗？
Remember that masks are quite helpful.
请记住，面具是相当有益的。
保护面罩。
If the masks come off, the magic is lost.
如果面具摘掉了，魔力也就消失了。
The pair inside wore face masks and white gloves.
车内的两个人带着面罩和白色的手套。
我喜欢面具。
Too much salt masks the true flavour of the food.
太多的盐会盖住食物本来的味道。
And remove your own masks to let people know yours.
如果你想让别人了解你的真心，也要摘下你自己的面具。
Today, let's learn to make animal-shaped masks, ok?
今天，让我们学习制作动物面具，好吗?。
Even the masks of life are masks of deeper mystery.
甚至连生命的假面，都是如此深邃而玄妙。
We chose surgical masks as an essential tool for that.
我们选择把医用口罩作为这样做的一个必要工具。
Surgeons wear masks to prevent the spread of infection.
外科医生戴着口罩以防止传染病的传播。
The masks are time-consuming to make, and they're not cheap.
面具的制作很耗时，当然也不便宜。
Don't boast about success; it masks the shadow of failure.
成功也可能暗藏失败的阴影，因此要胜而不骄。
We all wore masks at the party and no one knew who we were.
在晚会上我们都戴着假面具，谁也认不出我们。
On that day, they always make pumpkin lanterns and wear masks.
在那一天，他们总是做南瓜灯笼、戴面具。
The gas masks were collected last year because they were out of date.
去年，这些防毒面具由于过了有效期而被收回。
Meteorologists advised the public to wear face masks to ward off dust.
气象学家建议公众外出时戴口罩。
Good idea. I can't wait to wear those cool white masks we bought!
好主意。我想马上戴上我们买的那些酷酷的白色面具了。
Hospital staff should have individual gowns, gloves, masks and goggles.
医护人员应有个人专用罩衣、手套、面罩和护目镜。
Talking of Venice, have you seen the masks I bought there last year?
谈到威尼斯，你见过我去年在那儿买的那些面具吗？
Talking of Venice, have you seen the masks I bought there last year?
谈到威尼斯，你见过我去年在那儿买的那些面具吗？
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