It is important for men to regularly clean smegma.

Geologists believe that this area was formed by a graben.

The treatment efficacy of this medicine is very high.

I'm always impressed by his skillful handiwork.

He dug a hole in the ground and stored vegetables.

The unity of knowledge and action means that knowledge and action become one.

She was wearing an ao dai, a traditional Vietnamese dress.

He invested his private property for the project.

This book is full of useful information.

My favorite seafood is sazae (a type of sea snail).