cash drain的用法和樣例：
例句
- Cash payments for purchases are the basic and important item of cash outflows from operating activities.
購貨支付的現金是經營活動產生的現金流出中的一個基本的和重要的項目。 - The main purpose of the statement of cash flow is to report the cash inflows and the cash outflows during an accounting period.
現金流量表的主要目的是報告某一會計期間現金流入和現金流出的情況。
