单词	life jacket
释义	life jacketˈlife ˌjacket noun [countable] a piece of clothing that you wear around your upper body to prevent you from sinking in the water
随便看	lowdown low-down Lowell, Amy Lowell, James Russell Lowell, Robert low-end lower lower case lower chamber lower class lower-class lower court lowered lower-end lower house lower orders Lower South, the lowest common denominator lowest common multiple low-fat low-flying low-frequency low frequency low gear low-grade

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