她被电缆绊倒，脸朝下摔倒了。

She tripped over the cable and ___fell ___flat ___on her ___face.

在比赛中，他绊了一下，在众人面前脸朝下摔倒了。

During the race, he stumbled and ___fell ___flat ___on his ___face in front of everyone.

如果你不小心，可能会在光滑的地面上脸朝下摔倒。

If you're not careful, you might ___fall ___flat ___on ___your ___face on the slippery surface.