Dinitro

例句：

1. 1. This chemical is used in the production of explosives.
   这种化学物质用于生产炸药。
2. 2. The compound has a strong odor and can cause respiratory problems.
   这种化合物有强烈的气味，可能导致呼吸问题。
3. 3.Dinitro was once a popular drug, but it is now illegal in many countries.
   二硝基苯曾经是一种流行的药物，但在许多国家现在已非法。