The gas would have the dual effect of choking air-breathing animals and preventing sunlight from reaching Earth's surface.
这些有毒气体不仅会使动物造成了窒息，而且对照射到地球表面的阳光产生了严重阻挡。
2
Palestinian residents described how on June 27th police charged through Silwan's narrow thoroughfares firing tear-gas grenades through Windows and doors, choking people inside their homes.