求翻译：现金是企业生产经营过程中的货币资金，包括备用金，银行活期存款，各种存单及有价证券等项目，其特点是流动性极强，但盈利能力极差。缺乏足够的现金，有可能影响企业在国际支付及生产经营活动，使企业面临周转不灵的威胁；但持有过量的现金，又将为此付出高额的成本，降低企业的收益。是什么意思？

Cash is the currency in the process of production and operation funds, including petty cash, demand deposits with banks, certificates of deposit and marketable securities and other projects, which is characterized by a highly mobile, but poor profitability. The lack of cash may affect enterprises in

Cash is a production and operations of the monetary resources in the process, including petty cash, bank account, deposit and portfolio projects, such as they are characterized by strong liquidity, but profitability is very poor. Lack of sufficient cash, there are likely to affect business in the in