spoiling someone's work;  useless effort;  labouring in vain; (lit.) if a peasant sows seeds, the crows will dig them up
 spoiling someone's work;  useless effort;  labouring in vain; (lit.) if a peasant sows seeds, the crows will dig them up
 spoiling someone's work;  useless effort;  labouring in vain; (lit.) if a peasant sows seeds, the crows will dig them up