中文：

保单现金价值是保险中的一个重要概念，它指的是在保险合同有效期内，保单持有人可以随时以退保的方式获取的现金价值。简单来说，保单现金价值就是保险公司在扣除各项手续费用之后，退还给投保人的余额。

保单现金价值的计算方式通常是在保险合同的条款中明确规定的。在长期寿险合同中，保单现金价值一般会随着保单年数的增加而逐渐增加，但在合同初期，保单现金价值可能会低于所缴纳的保费。

保单现金价值的重要性在于它可以帮助保单持有人解决资金周转问题。如果投保人需要紧急资金，他们可以通过退保获取保单现金价值来应对。此外，保单现金价值还可以用于贷款，以帮助投保人获得更多的资金。

英文：

Policy cash value is an important concept in insurance, referring to the cash value that can be withdrawn by policyholders at any time during the effective period of the insurance contract through surrender. In short, policy cash value is the balance returned to the policyholder by the insurance company after deducting various handling fees.

The calculation method of policy cash value is usually clearly stated in the terms of the insurance contract. In long-term life insurance contracts, the policy cash value generally increases gradually with the increase of policy years, but in the early stage of the contract, the policy cash value may be lower than the premium paid.

The importance of policy cash value lies in its ability to help policyholders solve their cash flow problems. If policyholders need emergency funds, they can obtain policy cash value through surrender to cope with it. In addition, policy cash value can also be used for loans to help policyholders obtain more funds.