piě mò shì zhǔ ròutāng huò gǔtāng shí chángjiàn de dòngzuò, bǎ biǎomiàn de fúmò lāo diào

“撇沫”是煮肉汤或骨汤时常见的动作，把表面的浮沫捞掉。

'Skimming the foam' is a common action when cooking meat or bone broth, removing the floating scum from the surface.