balance /ˈbæləns/ I. vt. & vi.使平衡；保持平衡: balance one side with another 使一方与另一方成均势；balance one’s trade 使贸易平衡 Income and expenditures exactly balance.收支恰好相抵。‖II. n. 1.［u］平衡(有时可加 不定冠词): lose one’s balance 失去平衡；keep/maintain the balance in nature 保持生态平衡；destroy(disturb)the balance破坏（打乱）均势 ［考句］Companies are struggling to find the right balance between supply and demand, but it is no easy task.凡公司，总是不停地在寻求供销平衡，但这不是一件容易做到的事情。2.［c］(收支)差额，余数: The balance on  your account is $5. 你账上的余额 为5美元。 3.［c］天平: Weigh that side of beef on the balance. 在天平上称一下那块牛肉。4. 用于习语 in the balance 旗鼓相当，未见分晓：The game hung in the balance until the last minute when an exciting point decided it. 比赛十分紧张，直到最后一分钟激动的一分才定输赢。balance of forces 力量对比：This brought about a change in the balance of forces. 这就导致了力量对比的变化。balance of power 均势：This will upset the world balance of power. 这就搞乱了世界的均势。off balance失去平衡（见off条）；on balance 比较起来：On balance, we’re $50 richer. 比较起来，我们多50美元。out of balance失去平衡：The ship may be out of balance. 轮船有可能会失去平衡。