Trigraph

[traigrɑ:f]

解释:

(n.) Three letters united in pronunciation so as to have but one sound, or to form but one syllable, as -ieu in adieu; a triphthong.

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同义词及近义词：

n. Triphthong.

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解释:

n. a combination of three letters sounded as one a triphthong.

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