During the tense budget meeting, the manager tried to conceal her frustration with the delays.

在氣氛緊繃的預算會議上，經理努力掩飾她對進度延誤的不滿。

The sales rep concealed his disappointment when the client rejected the proposal by email.

客戶透過電子郵件拒絕提案時，那位業務代表掩飾了他的失望。

Although the flight was canceled again, the agent concealed her annoyance and stayed polite.

雖然航班又被取消了，地勤人員仍克制住煩躁，保持禮貌。