一定要在堆肥中加入石灰，少量的木灰和碎蛋壳。
Do add lime, small amounts of wood ashes or crushed eggshells to the compost pile.
自古以来，人们用水浸泡木灰就很容易滤取出它们。
They have been easily extracted since ancient times by soaking wood ashes in water.
外壳同样大多以手工敲开，工人手指上得沾些木灰或是亚麻子或海狸油来保护手。
Most shells are cracked by hand, too; workers dust their fingers in wood ash or linseed or castor oil, for protection.
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