churn something out
phrasal verb with churn verb uk/tʃɜːn/ us/tʃɝːn/
informal
（不顾质量快速地）大量生产;粗制滥造
to produce large amounts of something quickly, usually something of low quality
The factory churns out thousands of pairs of these shoes every week. 那家工厂每周生产数千双这样的劣质鞋子。
She churns out a new best-selling novel every year. 每年她都能炮制出一本新畅销小说。