It almost looks like a scale model of a dangerous cliff side.

幅画面看起来像等比例危险悬崖边的模型。

It was an adult, as could be seen from the six rows of teeth forming an isosceles triangle in its upper jaw.

条成年的鲨鱼，从它嘴里，在上颚上，有摆成等边三角形的六排牙齿，可以看出来。

So this leaves us, somewhat disturbingly, with three different possibilities: All  triangles really are equilateral, that's just the truth of the universe, or you can use  Euclid-style reasoning to derive false results, or there's something wrong in the proof.

所以让我们有点不安地面对三种不同的可能性：所有的三角形实际上等边的，宇宙的真相，或者你可以使用欧几里得式的推理得出错误的结果，或者证明中有什么问题。

In the first course, there was a shoulder of mutton cut into an equilateral triangle, a piece of beef into a rhomboides, and a pudding into a cycloid.

第道菜里，有块切成等边三角形的羊肉，块切成菱形的牛肉，还有块做成旋轮线形状的布丁。

Two equal length sides, and one that's different, and " equilateral" has all three sides equal length.

两条等长的边， 还有条不同的边， “等边” 的三条边都等长。

Actually, for that matter, since we made no  assumptions about the specific two sides we chose, it implies that any triangle is equilateral.

实际上， 既然我们对选定的任意两边没有做任何假设，暗示了任何个三角形都等边的。