The auditor flagged several irregular payments that had not been approved by finance.

稽核人員標記了幾筆未經財務部核准的異常付款。

Please report any irregular activity on your corporate credit card to customer service immediately.

若您的公司信用卡出現任何異常交易，請立即通報客服部門。

Because of irregular flight schedules during the holidays, travelers should confirm departure times online.

由於假期期間航班時刻不固定，旅客應上網確認起飛時間。