1 sentence for 配对 (pèi​duì — matched pair)

1. 这两个花瓶是配对的，不能拆开卖。

   zhè liǎng gè huā​píng shì pèi​duì de, bù néng chāi​kāi mài.

   These two vases are a pair and cannot be sold separately.

   Source: Dong Chinese Dictionary