hazardous substance

例句：

1. 1. The chemical washazardous and should be handled with care.
   这种化学物质是危险的，应该小心处理。
2. 2.The road is hazardous due to theslippery conditions.
   由于滑滑的条件，这条路是危险的。
3. 3. The worker was indanger of being electrocuted when hestepped on a live wire.
   当这名工人踩到一根电线时，他处于触电的危险之中。