Hurricanesarewindswithspeedsofupto74milesperhour.Hurricaneshavewindsofatleast74milesperhour.和上句的意思差别在哪里谢!

Question

Hurricanes are winds with speeds of up to 74 miles per hour.
Hurricanes have winds of at least 74 miles per hour.和上句的意思差别在哪里谢!

Answer 1

Hurricanes are winds with speeds of up to 74 miles per hour.
飓风的速度可以达到每小时74公里.
Hurricanes have winds of at least 74 miles per hour.
飓风的速度至少有每小时74英里.
第一句表达的是74公里是上限.可以达到那么多.意思是不总是那么高的速度,可能会低于74.
第二句表达是至少有74,表示的是下限.最少都有74,也有可能是80,90等等.