enlarge; increase the number by natural process from the parent stock
spread more widely
"propagate these characteristics"
"sound and light propagate in this medium"
"propagate sound or light through air"
"the infection spread"
"Optimism spread among the population"
"This great civilization was propagated throughout the land"
"spread information"
"circulate a rumor"
"broadcast the news"
Fuchsias are easy to..propagate from cuttings.
出自:Observer