The engineer was fired after he betrayed company secrets to a rival firm.

那位工程師把公司機密出賣給競爭對手後遭到解僱。

Customers feel betrayed when a bank shares their personal data without permission.

當銀行未經許可分享個人資料時，客戶會覺得被出賣。

She refused to betray her team, even when the competitor offered her a higher salary.

即使競爭對手開出更高的薪水，她也拒絕出賣自己的團隊。