Was evenly balanced. 是平衡的
Well-timed, balanced, efficient. 及时 均衡 高效
This well balanced alliance brings benefits 这种完美平衡
The rainforest's great diversity has come at a cost. It has made them the most finely balanced ecosystems in the world 雨林的物种多样性正在消失 而雨林却是维持地球生态系统微妙平衡的关键