Topic 1: Increasing travels between countries enable people to learn different cultures or to increase tension between people from different countries

Clothes + casual, civilian, clean, damp, dirty, dry, elegant, expensive, innovative, new, old, plain, special, travelling

Communication + direct, effective, electronic, global, mass, non-verbal, open, personal, verbal

Concern + central, chief, deep, environmental, genuine, grave, growing, immediate, main, major, particular, political, primary, public, real, serious, social

Condition + adverse, critical, economic, environmental, excellent, extreme, favourable, good, harsh, living, medical, mental, necessary, normal, physical, poor, social, working