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Learn about the chirping of a cricket (Korogi) in 90 seconds

In the fall crickets chirp incessantly in the grass. Can you tell the chirping of a cricket from other insects? Learn about crickets just in 90 seconds!
Ryouri english s 90 seconds to learn Japanese vocabulary - Theme: Cooking!
Kansaiben english s 90 seconds to learn common Kansai-ben words!
Eight beat square 90 seconds to learn how to play the 8th note rock beat
Screentones manga  1 90 seconds to learn how to apply screentones to manga