I can personally vouch for Maria's work ethic; she never missed a deadline here.

我可以親自擔保瑪麗亞的工作態度，她在這裡從未錯過任何期限。

Our supplier vouched that the replacement parts would arrive before Friday's shipment.

我們的供應商保證替換零件會在週五出貨前送達。

The hotel manager vouched for the accuracy of the invoice after reviewing every charge.

飯店經理在逐項核對所有費用後，擔保這張帳單正確無誤。