causeless基本解释
adj.无原因的;无缘无故的
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adj.无原因的;无缘无故的
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"a senseless, causeless murder"
"a causeless war that never had an aim"
"an apparently arbitrary and reasonless change"
"a causeless miracle"
"fortuitous encounters--strange accidents of fortune"
"we cannot regard artistic invention as...uncaused and unrelated to the times"