单词	copper-bottomed
释义	copper-bottomedˌcopper-ˈbottomed adjective Examples EXAMPLES FROM THE CORPUS This was not only copper-bottomed security, it was a chance to play with the big numbers and see what happened. able to be depended on:  a copper-bottomed guarantee
随便看	imperturbability imperturbable imperturbably waterway waterwheel waterwings waterworks watery Watford Watling Street Watson, Dr Watson, James Watson, Tom watt wattage Watt, James wattle Waugh, Evelyn WAV Wave wave wave and pay waveband wavelength waver

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