2 sentences for 卖出 (mài​chū — reach a price)

1. 这件古董在拍卖会上卖出了天价。

   zhè jiàn gǔ​dǒng zài pāi​mài​huì shàng mài​chū le tiān​jià.

   This antique sold for a sky-high price at the auction.

   Source: Dong Chinese Dictionary

2. 这位作家的亲笔手稿在拍卖会上卖出了高价。

   zhè wèi zuò​jiā de qīn​bǐ shǒu​gǎo zài pāi​mài​huì shàng mài​chū le gāo​jià.

   The author's original manuscript sold for a high price at the auction.

   Source: Dong Chinese Dictionary