文中的 spiral downward 就是指“螺旋式下降”。 以此类推，“螺旋式上升”就是 spiral upward。 在目前仍面临较强通胀压力的形势下，应努力避免出现 spiraling inflation （螺旋式通胀，恶性循环通胀）。 美国在2008年爆发 subprime crisis （次贷危机），随后全球金融危机爆发。

The US job market slowed substantially in July and was much weaker than first estimated for prior months, suggesting ...

Job market data get revised every month. But rarely are the revisions as negative as the ones in Friday’s employment report.

The structure of a sunspot is determined by the local interaction between magnetic fields and convection near the Sun's surface1,2. The dark central umbra is surrounded by a filamentary penumbra ...