ruler是什么意思?

ruler是什么意思? ruler是什么意思? ruler是什么意思 ruler是什么意思 ruler是什么意思? ruler lt,s a ruler in English是什么意思 my ruler is longer than yours是什么意思?英语 ruler是什么 ruler是什么 This is an orange and that is a ruler. 这里的and是什么意思? ruler是尺子吗 ruler 英语单词怎么读? ( ) you( ) a ruler? 英语口语ruler怎么读 What () is your ruler ruler怎么读 Whose ruler is this?