7 - 扁扁長長測量東西，猜猜我是誰？

歡迎登上——Riddle Island 大冒險！ 一起聽線索、猜謎語，找答案，Let’s riddle and go！ 今天，小勇士 蔡心彤 來挑戰，到底能不能完成挑戰呢？ 這集的謎題是...

I’m long and flat and made just right,

I help you draw a line so tight.

With numbers marked from end to end,

I’m every student’s measuring friend.

I stay in pencil cases neat,

And make your drawings look so sweet!

What am I?

小朋友，你們覺得今天謎題的正確解答是什麼呢？