研究表明，虽然一张未经整理的床看起来很肮脏，但它无法吸引那些被认为会引发哮喘和过敏症的屋尘螨。
Research suggests that while an unmade bed may look scruffy, it is also unappealing to house dust mites thought to cause asthma and other allergies.
看上去好像一张脸的冰貌由落在冰面的深色冰尘沉积物组成。
An ice feature which looks like a face, is caused by dark coloured cryoconite deposits falling on the ice.
他拒绝的是一张浑浊的尘网。
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