it goes without saying 不言而喻;不消说
allergen 过敏原;反应原
None of this means that dust poses a clear and present danger or that you need to take any extraordinary measures. Just clean regularly, dont smoke, eat at the table and try not to freak out. Dust bunnies are still only bunnies; you may just want fewer of them.
freak out 吓坏了;崩溃
Question time:
1. How does dust come into our houses?
2. Whats the key factor of blood-lead levels in children according to Layton and Beamer papaer?
3. How to get rid of the dust in house?
1. Generally, the majority of household dust about 60% comes from outside, through windows, doors, vents and on the soles ofour shoes.
2. Lead loading on floors.
3. Its important that you try, just clean regularly, dont smoke, eat at the table and try not to freak out.
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