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killer app

柯林斯詞典

1. N-COUNT A killer app is a piece of computer software that is extremely popular and successful. Killer app is an abbreviation for "killer application." 受人歡迎的應用軟件; killer application的縮寫。[非正式]
The Net's real killer app is email. 因特網(wǎng)真正的殺手應用軟件是郵件。