单词	prelaunch
释义	prelaunch adjective pre·​launch ˌprē-ˈlȯnch  -ˈlänch variants or pre-launch 1 : in preparation for or preliminary to the launch of a spacecraft, missile, satellite, etc. a prelaunch inspection 2 : in preparation for or preliminary to the launch of a new product, campaign, etc. prelaunch testing of the software In the motion picture industry, prelaunch advertising has been shown to increase stock prices and possibly create unrealistic expectations about a movie's performance … Amit Joshi and Dominique M. Hanssens Word History First Known Use 1954, in the meaning defined at sense 1
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