这条船船头是圆的，船尾则是方的。
The boat is rounded at the front but squared off at the back.
她现在很老了，戴着小而圆的金属丝框眼镜，下巴长出了胡须。
She is very old now, with little, round, wire-rimmed glasses and whiskers sprouting from her chin.
这块蛋糕是圆的，就像月亮一样。
在美国，并不是所有的球都是圆的。
月饼是圆的，像是月亮。
难道球不都是圆的？
你变得又胖又圆的！
地球是圆的。
在那一天，月亮是圆的，所以家人都想聚在一起吃月饼。
On that day, the moon is round. So families want to get together and eat mooncakes.
人们用脚来踢球，并且球看起来是圆的，在我看来是这样。
They kick the ball with their feet, and the ball is round. It seems to me so.
这个公式用于计算圆的面积。
这就好比要把圆的变成方的。也就是说，是不可能的。
It was like trying to square a circle. That is, it was impossible.
有些是圆的，有些是方的。
商朝的扇子有些是圆的，有些是方的。
Some fans were round, while others were square during the Shang Dynasty.
鲁鲁想，既然圆环可以滚动，西瓜也可以滚动，因为它也是圆的。
Lulu thought since the round hoop can roll, the watermelon can roll too, because it was also round.
月饼是圆的，看上去就像圆圆的月亮。
我的肚子也是圆的。
什么东西可以是红的或绿的，圆的或尖的，大的或小的，更重要的是，有人爱有人恨？
What can be both red or green, round or sharp, big or small, and more importantly, loved or hated by someone?
例如，如果地球真的是圆的，我们可以预测，我们中的任何一个人，沿着同一个方向不断前进，最终会回到起点。
For example, if the world is really round, we can predict that any of us, going on and on in the same direction, should eventually find ourselves back where we started.
所有圆的形状都是相同的。
你看，我们都相信地球是圆的。
如果是方的，那么就不是圆的。
我们看到较圆的东西，我们会想到正圆。
We see something that's more or less round, and it reminds us of perfect circularity.
我们这样说一个苹果，它是圆的，红色的。
亲眼看看地球是圆的。
就像想方设法的去找圆的起点一样。
这就是他将其，称为同心圆的原因。
So that's why he thinks it appropriate to call them concentric circles.
这就是他将其，称为同心圆的原因。
So that's why he thinks it appropriate to call them concentric circles.
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