We do not want to alert them to exactly what that is, so we work with a degree of necessary secrecy. 我们不会让他们警觉什么正在精确地发生,所以我们的工作需要一定程度的保密。
Because food safety involves a wide range of management and supervision difficult, and the food safety hazards also has a certain degree of secrecy and uncertainties. 由于目前食品安全牵涉面广、管理部门多、监管难度大,而且食品安全的危害还具有一定的隐蔽性和不确定因素。