SEU

例句：

1. 1. 安全
   A safety
2. 2. 安全系统
   Safety systems
3. 3.安全带
   Seat belt
4. 1. The company is committed to ensuring safety at all levels.
   该公司致力于确保各级的安全。
5. 2.The government has introduced stricter safety regulations.
   政府已经引入了更严格的安全规定。
6. 3. He always wears his seat belt when driving.
   他开车时总是系好安全带。