His meaning was that if one uses a spear to wash rice and a sword to cook, the sieve and pot will be punctured, which is a dangerous situation.

• 这句诗的意思是说：用长矛的矛头淘米，用宝剑的剑尖拔火作饭，结果淘米箩和饭锅的底都会被戳破的，这是危险的事。