Butterflies don't know the color of their wings, but human eyes know how beautiful it is. Likewise, you don't know how good you are, but others can see that you are special.
Khoa Học Lớp 4
Update Required
To play the media you will need to either update your browser to a recent version or update your Flash plugin.
Khoa Học Lớp 4
Bùi Phương Nga
Khoa Học Lớp 4 - Bùi Phương Nga
/audio.php?audio=khoa_hoc_lop_4__bui_phuong_nga