プログレッシブ和英中辞典(第4版)の解説
たき【多岐】
多岐の various; diverse
彼の多岐にわたる話題には驚く
We are surprised at the wide variety [range] of topics he can converse on.
出題は多岐にわたっていた
Questions were put on various [a wide range of] subjects.
問題は複雑多岐である
The problem is quite complicated [complex].