【中文版】

口径外汇占款是指中国人民银行为了统计货币流动情况而使用的一种外汇占款统计方法。根据这种方法，口径外汇占款包括中国人民银行为了结售汇而收购的全部外汇，以及经由银行表外业务等途径而进入的外汇，不包括银行自有外汇。

口径外汇占款是中国人民银行为了稳定汇率而采取的一种政策手段。当外汇供大于求时，中国人民银行就会通过收购外汇来减少外汇供应，从而稳定汇率。反之，当外汇供小于求时，中国人民银行就会通过售卖外汇来增加外汇供应，从而稳定汇率。

口径外汇占款的变化反映了国际收支状况和货币政策操作情况。如果口径外汇占款增加，说明国际收支状况良好，同时货币政策需要紧缩；如果口径外汇占款减少，说明国际收支状况不佳，同时货币政策需要宽松。

【英文版】

The term "currency swap" refers to the statistical method used by the People's Bank of China to calculate foreign exchange reserve. According to this method, the currency swap includes all foreign exchange acquired by the People's Bank of China for settlement and sale of foreign exchange, as well as foreign exchange entering through bank off-balance sheet business, excluding the foreign exchange owned by banks.

The currency swap is a policy tool used by the People's Bank of China to stabilize the exchange rate. When the supply of foreign exchange exceeds the demand, the People's Bank of China will reduce the supply of foreign exchange by purchasing foreign exchange to stabilize the exchange rate. Conversely, when the supply of foreign exchange is less than the demand, the People's Bank of China will increase the supply of foreign exchange by selling foreign exchange to stabilize the exchange rate.

The change in currency swap reflects the status of international balance of payments and monetary policy operations. If the currency swap increases, it indicates that the international balance of payments is good, and monetary policy needs to tighten. If the currency swap decreases, it indicates that the international balance of payments is not good, and monetary policy needs to loosen.