hold the balance

基本解释

In Spain, where nationalists from Catalonia or the Basque Country often hold the balance of power, that makes a difference.
这影响重大，因为在西班牙，加泰罗尼亚地区和巴斯克自治区的民族主义者常常在大权上分庭抗礼。
The Greens will hold the balance of power in the new Senate, potentially offering a chance for some of the government’s controversial plans to pass.
绿党将在新参议院的实力均衡中起到举足轻重的作用，为通过一些有争议的法案提供了潜在的机会。
It was an empty threat: it was soon clear that the independent peers who hold the balance of power in the Lords would oppose any assault on the cherished idea that the House regulates itself.
而这一威胁并没有奏效：事情很快明了了，这些维持着上议院权利平衡的独立的贵族议员们，将对任何挑战他们的宝贵理念——议院自我规范——的挑衅进行回击。

What I am going to do next day is go into the larger stoichiometry and understand the principles of mass balance and reactivity But before you go,hold it,I don't want you racing off.
下堂课我要做的是,讨论化学计量学，和,质量平衡很反应定律,但在下课之前，我不希望你们这么快走。
麻省理工公开课 - 固态化学导论课程节选

The small nationalist parties from Catalonia, the Basque country and elsewhere hold the balance of power.
ECONOMIST: Spain
More importantly, they may well hold the balance of power in the next Parliament.
ECONOMIST: Liberal Democrats
Yet the drug-financed warlords who hold the balance of power are still rooted in the tribal system.
ECONOMIST: Far more than two sides to the conflict