Synonyms:

annat–from grains; bhavanti–grow; bhutani–the material bodies; parjanyat–from rains; anna–of food grains; sambhavah–are made possible; yajnat–from the performance of sacrifice; bhavati–becomes possible; parjanyah–rains; yajnah–performance of yajna; karma–prescribed duties; samudbhavah–born of.

Translation:

All living bodies subsist on food grains, which are produced from rains. Rains are produced by performance of yajna [sacrifice], and yajna is born of prescribed duties.