Question

"All the three stood still to smile through their hair"
what do you mean by smiled through their hairs?

Answer 1

smiled through their hais means that their happiness can be seen from every part of their body.

Answer 2

Answer:

The phrase smiling through their hair refers to the fact that these women had long hair half covering their faces and their smiles were so bright that it seemed like sunshine penetrating through that cover.

In other words, The breeze had swept the hair of the three girls at the beach onto their faces. They smiled at the camera through these wisps of hair.

Explanation:

Despite the water from the sea sweeping away the sand beneath their feet, the girls tried standing still by holding hands with each other and posed for a photograph. They were extremely happy and the wind played havoc with their hair. They could not hold back their hair and hence, it covered their faces. They smiled through them. The poetic device used here is alliteration.