三角: triangle...
使命: mission, long-term task to which one devotes oneself, a calling...
房间: room...
掏钱: to pay, to spend money, to fork out...
城区: city district, urban area...
发展: development, growth, to develop, to grow, to expand...
迫使: to force, to compel...
后代: descendant, progeny, posterity, later ages, later generations...
入: to enter, to go into, to join, to become a member of, to confirm or agree with, abbr. for...
前提: premise, precondition, prerequisite...
