单词complementary-distribution
网络: 互补分布；互补分配；互补性分布
The sounds that are in complementary distribution and also phonetically similar are allophones of the same phoneme.
处于互补性分布并且语音上相似的两个音是同一个音位的音位变体。位的音位变体。
When two sounds never occur in the same environment, they are in " complementary distribution" .
它指两个音从不出现在同一语音环境里的状况。