当肉煮沸时，把浮在上面的浮渣撇掉。

When the meat is boiling, remove the scum.

youdao

当汤滚了之后，我们把火减小然后剽除汤里的浮渣。

When it is on the boil – we lessen the fire and scum.

youdao

当汤滚了之后，我们把火减小然后剽除汤里的浮渣。

When it is on the boil – we lessen the fire and scum.

youdao