第 15 课: 形状和颜色;形容词及其比较级-1
a big circle 一个大圆
a small circle 一个小圆
a big square 一个大正方形
a small square 一个小正方形
The red circle is bigger than the blue circle. 那个红色的圆比那个蓝色的圆大
The blue circle is bigger than the red circle. 那个蓝色的圆比那个红色的圆大
The square is bigger than the circle. 那个正方形比那个圆大
The circle is bigger than the square. 那个圆比那个正方形大