他们决定一对一对打。

They decided to fight mano-a-mano.

Source: Tatoeba

Sentence Composition

1 他们 tāmen they; them
2 决定 juédìng
  1. to decide (to do something)
  2. to resolve
  3. decision
  4. certainly

classifiers: 個, 項
3 一对一 yīduìyī one-to-one; one-on-one
4 对打 duìdǎ to fight (one against one)