balance of power
1 situation in which power is equally divided among rival states or groups of states 均勢(對立的國家或國家集團之間勢均力敵的狀況).
2 (politics 政) power held by a small group when rival larger groups are equal or almost equal in strength (當處於對立狀態的較大團體力量均衡或接近均衡時)小團體所具有的舉足輕重的力量
Since the two main parties each won the same number of seats, the minority party holds the balance of power. 由於兩個主要政黨都贏得了相同數量的席位, 因此作為少數派的政黨居於舉足輕重的地位.