digraph
noun [ C ] language specialized uk/ˈdaɪ.ɡrɑːf/ us/ˈdaɪ.ɡræf/
二合字母(两个字母发一个音)
two letters written together that make one sound
In English, the digraph "ph" is pronounced as /f/. 在英语中,二合字母 "ph "的发音为/f/。
See also: trigraph
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