1. 名詞
   三人一組, 三人組
   三合一, 三件一套
   the triad of ...(多人):
   ...的三人一組
   ...的三人組
   the triad of ...(多事物):
   ...的三合一
   ...的三件一套
   /以上限定單數可數名詞/
   可數名詞/
   

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   同義字詞
   threesome,trinity,trio,triple,triplet,triumvirate
   

例句

1. A triad is a set of 3 points.
2. Triad would need 2 DIN cables like MIDI.
3. This is his famous "inconsistent triad ".
4. Carney triad is most common in young females.
5. Carney's triad does not feature SDH mutations.
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