justin bieber在美国巡演时唱的一首叫什么名字?歌词里好像有It's...cool,cool,cool,coo

justin bieber在美国巡演时唱的一首叫什么名字?歌词里好像有It's...cool,cool,cool,coo it,s cool什么意思? It's cool.的中文 一首英文歌曲,歌词中有it's a cool cool world why not copy the justin bieber's picture,he is very cool! 是什 It's getting cool we cool在美国口语里的意思 It's cool是凉爽的意思 it's cool.的问句是什么 It's cool in autumn It's cool to be Cool Whispers歌词的中文翻译