Our new manager showed real moral fiber by reporting the billing error to the client.

我們的新經理主動向客戶通報帳單錯誤，展現了真正的品德。

During the interview, she proved her fiber by admitting a past hiring mistake honestly.

面試時，她坦承自己過去的一次招聘失誤，證明了她的品格。

It takes strong fiber to refuse a supplier's gift when shipping contracts are under review.

在審查貨運合約期間拒絕供應商的禮物，需要堅定的品格。