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

 
139.
 
Urban 
+ 
area,  community,  design,  development,  dweller,  environment,  growth, 
landscape,  life,  population,  problem,  regeneration,  renewal,  school, 
sprawl
 
140.
 
Urgent 
+ 
action,  attention,  call,  case,  consideration,  demand,  desire,  matter, 
measure, meeting, message, need, priority, problem, request, task, voice
 
141.
 
Useful 
+ 
advice, function, information, life, purpose, source, tip, tool, way
 
142.
 
Valid 
+ 
argument, claim, conclusion, criticism, excuse, point, reason, signature
 
143.
 
Violent 
+ 
action, act, behaviour, conduct, crime, film, image, reaction
 
144.
 
Visible 
+ 
change, clue, damage, difference, evidence, flaw, object, restraint, sign, 
step, symptom, weariness