churn out

动词 churn out:

1. perform in a mechanical way
2. produce something at a fast rate

1. She churns out romantic novels.
   她写了很多浪漫小说，质量很差。
2. Some pulp writers churn out two or three short stories a day.
   有些低级杂志的作家每天粗制滥造地写出两三篇短篇小说。