Diadaxis
二次对称轴
🗣️ 情景例句
My wife will love this jade necklace.
我太太一定会非常喜欢这条镶玉的项链。
Tom graduated from college at a very young age.
汤姆很年轻就从大学毕业了。
And I want a large box of chalk, too.
我还要一大盒粉笔。