易混淆的单词： Biohazardous

It is therefore critical for people working with biohazardous and potentially infectious materials to know the risks associated with them and the appropriate laboratory techniques to prevent unnecessary exposures .

因此实验操作中接触危险生物材料或潜在传染性材料时，了解其危害，采用适当技术防止不必要的接触十分关键。