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propagate
mastery UK /ˈpɹɒpəˌɡeɪt/ US /ˈpɹɑpəˌɡeɪt/verbadj
card 1 of 10 · fill in the blank
Cosmic noise and electromagnetic waves _____ without a medium.
card 1 of 10 · fill in the blank
Cosmic noise and electromagnetic waves _____ without a medium.