“平衡的”用英语怎么说

他仍然是维系该国脆弱的政治平衡的支柱。He remains the anchor of the country's fragile political balance.做自行车前轮抬起后轮平衡的特技to do a wheelie森林里有高度敏感、灵敏平衡的各种生态系统.There are highly sensitive and delicately balanced ecosystems in the forest....