The cafeteria staff must clean all food preparation surfaces to prevent the spread of bacteria.

員工餐廳的工作人員必須清潔所有備餐檯面，以防止細菌散播。

Please ship the samples in sealed containers so that no bacteria contaminate the products in transit.

請將樣品裝在密封容器中運送，以免運送途中細菌污染產品。

Our new air filters remove dust and harmful bacteria, making the office healthier for employees.

我們新的空氣濾網能去除灰塵和有害細菌，讓辦公室對員工更健康。