Indeed, getting the zinnia flowers to bloom proved challenging for ISS astronaut Scott Kelly.

实际上，培育百日菊属植物开花对空间站宇航员Scott Kelly来说极富挑战。

youdao

Three economists, Stanford University's Nicholas Bloom and Scott Baker and the University of Chicago's Steven Davis, have done invaluable work measuring the level of policy uncertainty over the past few decades.

WSJ: Bill McNabb: Uncertainty Is the Enemy of Recovery

Recently, we also learned about the U.S. Economic Policy Uncertainty Index, which is compiled by economists Steven Davis of the University of Chicago and Scott Baker and Nicholas Bloom of Stanford.

FORBES: Contrarian Buy Signals