她拿起一本厚厚的书，开始大声朗读。

She picked up a ___thick volume and began to read out loud.

爬山时使用粗绳子以获得更好的支撑。

Use a ___thick rope for better support when climbing.

家具上有一层厚厚的灰尘。

There was a ___thick layer of dust on the furniture.