为了确保安全,我们提醒乘客们在开车前都系上安全带 In order to ensure safety, we advise passengers to wear seat belts before driving all ensure ensure[简明英汉词典] [inˈʃuə] vt. 1 确保, 担保 2 担保获得[避免]
To ensure the safety, we remind the passengers to fasten the seat belts. 如果你这句话是对着乘客们说的,那么改为: To ensure your safety, we remind the passengers to fasten your seat belts.