Zài shìchǎng shàng tǎojià huánjià shì hěn zhèngcháng de shì.
Haggling at the market is perfectly normal.
Tips
usage
还价 specifically means the buyer's counter-bid after a seller quotes a price. The full expression is 讨价还价 (tǎo jià huán jià) — to bargain/haggle — which is used as a set four-character phrase.
