单词	Happy Days are Here Again
释义	Happy Days are Here AgainˌHappy ˌDays are ˌHere Aˈgain a song that was popular in the 1930s. People sometimes say ‘happy days are here again’ when a bad situation has ended and things are getting better again.
随便看	involuntary involve involved involvement invulnerability invulnerable inward inward investment inward-looking inwardly inwards in-word in-your-face iodine IofC IOM -ion ion Iona Ionesco, Eugène Ionic ionization ionize ionizer ionosphere

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