अन्वयः

अन्यदा at some other time, धर्मज्ञा conversant with righteous ways, सुरसम्मता highly respected by the gods, सुरभिः Surabhi (the divine cow), उर्व्याम् on the earth, वहमानौ carrying the burden (drawing the plough), विगतचेतसौ senses lost, पुत्रौ sons, ददर्श किल beheld, as they say.

M N Dutt

Once on a time, it is related by persons cognizant of morality, Surabhi regarded by the celestials, beheld two of her sons toiling on earth and seeming to be deprived of their senses.

Summary

It is said that once upon a time Surabhi, the divine cow, highly respected by the gods and conversant with righteous ways, beheld her two sons who fainted due to fatigue while carrying the burden of the ploughs.

पदच्छेदः

अन्यदा	अन्यदा (अव्ययः)
किल	किल (अव्ययः)
धर्मज्ञा	धर्म–ज्ञ (१.१)
सुरभिः	सुरभि (१.१)
सुरसंमता	सुर–संमत (√सम्-मन् + क्त, १.१)
वहमानौ	वहमान (√वह् + शानच्, २.२)
ददर्शोर्व्यां	ददर्श (√दृश् लिट् प्र.पु. एक.)–उर्वी (७.१)
पुत्रौ	पुत्र (२.२)
विगतचेतसौ	विगत (√वि-गम् + क्त)–चेतस् (२.२)

छन्दः

अनुष्टुप् [८]

छन्दोविश्लेषणम्

१	२	३	४	५	६	७	८
अ	न्य	दा	कि	ल	ध	र्म	ज्ञा
सु	र	भिः	सु	र	सं	म	ता
व	ह	मा	नौ	द	द	र्शो	र्व्यां
पु	त्रौ	वि	ग	त	चे	त	सौ