And are they the harbingers of a broader bond-market bust?

其二，它们是否预示了更广泛的债券市场风暴？

Phytoplankton can also be the harbingers of death or disease.

浮游植物也可以是死亡或疾病的先兆。

So perhaps hackers are, after all, harbingers of the world to come.

因此，也许黑客倒是未来世界的先驱。

The latest figures are seen by many to be harbingers of financial doom.

许多人认为最新的数据是财政恶运的预兆。

Extratropical Southern Hemisphere Cyclones: Harbingers of Climate Change?

南半球温带气旋：气候变化的先兆？