1. A parallelepiped bounded by six similar faces (either rhombuses or parallelograms).
有六个面的平行四面体（或是棱形的或是平行四边形的）。
rhombuses的反义词
2. In the mid1970s, Penrose came up with a set of just two rhombuses that did the job.
二十世纪七十年代中期，彭罗斯得出答案，仅用两块菱形瓷砖作为一套就可以做到这一点。