多音字指同音字的一种，它可以有不同的音，例如行。多音字圈是指某个多音字的不同音之间形成一个圈。比如行有两个读音，一个是háng，一个是xíng，那么这两个读音就构成了一个多音字圈。组词时，可以利用多音字圈的特点，形成一些有趣的句子或词语，如行行摄影行，行行在路上。In English:A polyphone refers to a word with multiple pronunciations, such as 行. A polyphone circle is formed when its different pronunciations create a loop. For example, 行 has two pronunciations, one is háng and the other is xíng, so these two pronunciations form a polyphone circle. When creating words, one can use the characteristics of polyphone circles to form interesting sentences or phrases, such as 行行摄影行，行行在路上 (taking photos everywhere, always on the road).
