萧条: bleak, desolate, (economic) depression or slump...
演变: to develop, to evolve, development, evolution...
牢骚: discontent, complaint, to complain...
不止: incessantly, without end, more than, not limited to...
成立: to establish, to set up, to be tenable, to hold water...
观摩: to observe and emulate, to study (esp. following sb's example)...
场馆: sporting venue, arena...
真挚: sincere, sincerity...
相通: interlinked, connected, communicating, in communication, accommodating...
亲友: friends and relatives...
