doubtful accounts provision的用法和樣例：
例句
- The Allowance for Doubtful Accounts often is described as a contra-asset account.
壞賬準備是一個資產對沖賬戶。 - The following schedule lists the group totals from the preceding illustration and shows how the total probable expense from uncollectible accounts is computed.
下面報表上列示的數據，反映了每個賬齡組的金額以及壞賬準備總數計算的過程。
