例句與造句

1. There are infinitely many compact triangular hyperbolic Coxeter groups, including linear and triangle graphs.
2. A matroid has branchwidth one if and only if every element is either a loop or a coloop, so the unique minimal forbidden minor is the uniform matroid U ( 2, 3 ), the graphic matroid of the triangle graph.
3. It's difficult to find triangle graph in a sentence. 用triangle graph造句挺難的