Analysts saw the sudden rise in orders as a harbinger of a strong holiday season.

分析師認為訂單突然增加是假期旺季強勁的預兆。

The CEO's surprise resignation email was a harbinger of major changes at headquarters.

執行長突如其來的辭職信，正是總部即將大幅變動的先兆。

Delayed shipments from the supplier proved to be harbingers of wider supply chain problems.

供應商的出貨延誤，後來證明是更大規模供應鏈問題的預兆。