Punchdown any loose nails so that the floor is quite smooth.
把所有松动的钉子都钉进去，使地板平滑。
2
Punchdown the dough, knead briefly and cut into4 equal pieces.
将面团气体排除，稍微擀揉后匀切成4块。
3
The rules also permitted wrestling holds and other tactics, and rounds ended only with "falls," when one man went down, whether from a punch or a throw or sheer exhaustion.