safety rule的用法和樣例：
例句
- The health and safety officer will guide you through the safety procedures.
健康安全官員將向你把安全規程解釋一遍。 - The outcome chosen should depend on the relative size of the benefits of trade versus the costs of altering or complying with food safety regulations.
對搞國際食品貿易來說，按照食品安全規程是前提，所以一定要了解食品國際貿易的理論啊！
