chí táng lǐ / yǎng de / táng shī / zhǎng de / hěn kuài / jǐ gè yuè / hòu / jiù / dá dào / shàng shì / de / dà xiǎo

池塘里养的塘虱长得很快，几个月后就达到上市的大小。

The catfish raised in the pond grow quickly and reach marketable size after just a few months.