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单词
mayday
释义
mayday (also Mayday), n (radio 无) international distress signal, used by ships and aircraft (船和飞行器用的)国际无线电求救信号 [attrib 作定语] a mayday call/signal 求救呼叫[信号]. Cf 参看 SOS.
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understanding
understate
understatement
understudy
undertake
undertaker
undertaking
undertone
undertow
undervalue
underwater
underwear
underweight
underwent
underworld
underwrite
underwriter
undeserved
undeservedly
undesirable
undesirably
undeterred
undeveloped
undid
undies
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更新时间:2026/8/27 10:32:58