fall flat

phr

• ① 直挺挺地跌倒
  • He fell flat on his face.他脸朝下地跌倒了。

• ② 完全失败;未获好评;全无反应(★此词组中的flat亦可视为adv.)
  • His little joke fell flat.他的小笑话没有引起任何反应。