sulfurous method

例句：

1. 1. The chemical was found to be sulfurous in nature.
   这种化学物质被发现是含硫的。
2. 2. The sulfurous fumes made the air thick and uncomfortable.
   浓重的硫磺烟使空气变得浓重而不适。
3. 3.The sulfurous gases were responsible for the fire's rapid spread.
   这些含硫气体导致了火灾迅速蔓延。