灰尘

长时间无人居住的旧书房里，桌椅和书架上落满了厚厚的一层灰尘。

zhǎng shí jiān wú rén jū zhù de jiù shū fáng lǐ, zhuō yǐ hé shū jià shàng luò mǎn le hòu hòu de yī céng huī chén.

In the old study room that had been unoccupied for a long time, the tables, chairs and bookshelves were covered with a thick layer of dust.

这种前沿探索为进一步深化现代灰尘研究提供了宝贵的第一手资料。

zhè zhǒng qián yán tàn suǒ wèi jìn yí bù shēn huà xiàn dài huī chén yán jiū tí gōng le bǎo guì de dì yī shǒu zī liào.

This cutting-edge discovery provides valuable primary data for further research into modern dust.