atmosphere

pollution

environment

demography

introduction

preface

beginning

foreword

of the same kind

of the same place

of the same race

of the same density

to learn

to drink

to tinge

to acquire

very dangerous

very pleasant

very ugly

very unpleasant

poetry

novels

autobiography

plays

a chronicle

an autobiography

a diary

a biography

17th century

18th century

19th century

20th century

ardour

compassion

anxiety

concern

thirty times

three hundred times

three times twenty

more than three