safest ['seɪfɪst]

例句:

• It is the cleanest & safest form of energy.
  来自SA
• It is safest to deposit your money in the bank.
  钱存入银行最保险.
  
• It's safest to keep a good distance behind in case the car in front suddenly stops.
  最安全的办法是在后面保持相当一段距离,以防前面的汽车突然停车.
  
• It's safest to remain a good distance behind, in case the car in front suddenly stops.
  最安全的方法就是和前面的车保持适当的距离, 以免它突然刹车.
  
• The Zombies material is the safest place to start.
  来自BBC
• Nuclear is safest, cheapest energy source out there.
  来自SA