Let's climb up the hill and see how the rock turns into a star!
Let's go to the top of the hill and see how the stone starts to shine and go up the sky to turn into a star!
ご質問ありがとうございます。
① "Let's climb up the hill and see how the rock turns into a star!"＝「丘を登って、石がお星さまになるのを見てみよう！」
② "Let's go to the top of the hill"＝「丘の上に行こう」
"and see how the stone starts to shine"＝「そして石が光り出すのを見よう」
"and go up the sky to turn into a star!"＝「そして空を上ってお星さまになるところを！」
ご参考までに。
Let's go to the hills and watch the stones turn into stars!
「丘に行って、石がお星さまになるのを見よう！」
- Let's go to the hills and watch the stones turn into stars!
- Go to the hill and see how the stones turn to stars!
- Climb up the hill and watch how the stones turn into stars!
丘の上に到着すると、バッグの中の石が光り出して、夜空に昇っていき、星になる
- When you arrive at the top of the hill, the stones in the bag begin to glow, rise into the night sky, and then become stars.
アメリカ合衆国 
