单词	Sudden Infant Death Syndrome
释义	Sudden Infant Death SyndromeˌSudden ˌInfant ˈDeath ˌSyndrome noun [uncountable] technical (abbreviation SIDS) when a baby stops breathing and dies while it is sleeping, for no known reason SYN crib death American English, cot death British English
随便看	ultra- Ultrabook ultramarine ultraportable ultrasonic ultrasound ultraviolet ululate ululation Uluru Ulysses um umami um and ah umber umbilical cord umbrage umbrella UMIST umlaut ump umpire umpteen umpteenth UMWA

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