单词	ruby laser
释义	ruby laser noun : a laser in which red light is produced by an atomic transition of the chromium contained in a ruby rod Word History First Known Use 1960, in the meaning defined above
随便看	bud brush bud cutting bud grafting bud gum bud mite bud moth bud mutation bud rot bud sage bud sagebrush bud scale bud sport bud stick bud variation bud variety Budapest budapests budbreak budda buddah budded budder budders buddh gaya Buddha

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