What is the word gravel group? How can gravel form words?

1, fine gravel [xl]

Gravel with a diameter of 1 to 2mm.

2. Gravel desert

The surface of the desert is almost completel

What is the word gravel group? How can gravel form words?

1, fine gravel [xl]

Gravel with a diameter of 1 to 2mm.

2. Gravel desert

The surface of the desert is almost completely covered with gravel, with no soil and few plants.

3. Gravel roof

Composite roofing layer with gravel embedded in asphalt surface.

4. Comprehensive enterprise

A sedimentary rock. It is made of pebbles of different sizes bonded by substances deposited in water.

Step 5 abandon Joan and pick up gravel

It is a metaphor for throwing away precious things and picking up useless ones. Joan, Meiyu; Gravel, rubble.