flammables造句
Separateflammablesorcombustiblesfromoxidizersbyatleast20feetorahalf-hourfirewall.Oxygenmustbeseparatedfromflammablesandcombustiblesby20feetorahalf-hourfirewall.Usebattery-poweredlanternsorflashlightst...
Separateflammablesorcombustiblesfromoxidizersbyatleast20feetorahalf-hourfirewall.Oxygenmustbeseparatedfromflammablesandcombustiblesby20feetorahalf-hourfirewall.Usebattery-poweredlanternsorflashlightst...