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https://elements.envato.com/basketball-game-buzzer-PNYB6GQ
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https://elements.envato.com/cartoon-bottle-low-horn-MJ57E3A
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https://elements.envato.com/cartoon-siren-LMWJXYS
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https://elements.envato.com/new-message-notification-6Y5N7UF
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https://elements.envato.com/alert-TLTSRXB
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https://elements.envato.com/interface-alerting-Z6FMW3L
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https://elements.envato.com/input-error-notification-4-N4UKZHK
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免费

https://elements.envato.com/input-error-notification-2-7BXTX35
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免费

https://elements.envato.com/input-error-notification-3-2H3ZHH2
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免费

https://elements.envato.com/input-error-notification-1-R4WMRBZ
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https://elements.envato.com/input-error-notification-5-NXAULFL
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https://elements.envato.com/metal-detector-wand-beep-L9P32RR
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https://elements.envato.com/negative-notification-ZBYBH2Y
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https://elements.envato.com/chipmunk-chirp-01-a-eastern-chipmunk-7AAHU2E
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https://elements.envato.com/chipmunk-chirp-01-b-eastern-chipmunk-HDD97F2
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https://elements.envato.com/metal-alarm-ringing-UZXK4EM
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免费

https://elements.envato.com/school-bell-1-BQZN4J4
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https://elements.envato.com/school-bell-2-S2ATE6T
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https://elements.envato.com/school-bell-3-6VE3KFA
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https://elements.envato.com/wrong-answer-buzzer-9PBR2U3
免费
免费

https://elements.envato.com/synthesized-siren-QWQ4NUK
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https://elements.envato.com/wrong-answer-buzzer-double-02-F543NXY
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https://elements.envato.com/wrong-answer-notification-03-TYRJKLH
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免费

https://elements.envato.com/wrong-answer-notification-02-CGHU2AL
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免费
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