phrase informal to fall and land with your face down: 脸朝下跌倒，趴倒在地 Poor Kathy fell flat on her face in the mud.可怜的凯茜脸朝下跌进了泥里。 How does he drink so much and not fall flat on his face? She tripped over a ball and fell flat on her face. If you've ever fallen flat on your face, you know how embarrassing it can be. I once fell flat on my face while chasing a guy who had stolen my camera. See also