mở mang các thành phố 
urban development [ mở ] : to open, start, begin, turn on, set up
[ mang ] : to carry, wear, bear
[ các ] : (1) (pluralizer); these, various; (2) council chambers; (3) card; (4) to pay (additionally) as part of a deal
[ thành ] : (1) citadel, fortress, wall; (2) to, into; (3) to succeed; (4) to become; (5) honest, sincere
[ phố ] : business district, downtown; street
Most Common Compounds Set 1:
Most Common Compounds Set 2 :