歌词：WHat's this?
WHat's this?
WHat's this?
What?what?
It's a hat.
It's a hat.
It's a hat.hat hat
WHat's this?
WHat's this?
WHat's this?
What?what?
It's a bat.
It's a bat.
It's a bat.bat bat
WHat's this?
WHat's this?
WHat's this?
What?what?
It's a mat.
It's a mat.
It's a mat.mat mat
WHat's this?
WHat's this?
WHat's this?
What?what?
It's a cat.
It's a cat.
It's a cat.cat cat
