the river is three times as long as that one 请问这句话用比较级表达相同的意思怎么说呢?是四倍还是三

题目

the river is three times as long as that one 请问这句话用比较级表达相同的意思怎么说呢?是四倍还是三

答案

the river is three times as long as that one
这条河是那条的三倍长.
就是比那条长了两倍.
the river is twice longer than that one