“pumice stone”可以造什么句，pumice stone造句

According to Gerard Kuiper, of the University of Chicago, the escape of gases from the moon's magma may have given the satellite a light, porous consistency, like that of a pumice stone.

If you suffer from these problems you can file them down with a pumice stone.

Chris will occasionally rummage through my manicure/pedicure sets for clippers, scissors and pumice stones.