完成句子：绳子的平均长度是三米 The ropes ___is three metres ___ ___ .
问题描述：
完成句子：绳子的平均长度是三米 The ropes ___is three metres ___ ___ .
答
The ropes _length__is three metres _on__ __average._
完成句子：绳子的平均长度是三米 The ropes ___is three metres ___ ___ .
The ropes _length__is three metres _on__ __average._