The external shell of a crab is very hard.

A blood cockle is one of the delicious seafood dishes.

I love the taste of blood cockles.

This coast is inhabited by many juvenile shellfish.

I cannot speak languages other than Japanese.

He was fishing outside of the boat.

We are planning to travel outside of the prefecture next week.

I think his actions are an evil against society.

He is doing special exercises to strengthen his external obturator muscle.

He bought new shoes in the underground street.