a shortcoming, imperfection, or lack
缺点,缺陷;缺乏
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genetic defects 遗传缺陷
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[mass noun]
the property is free from defect .这块地产无可挑剔。
abandon one's country or cause in favour of an opposing one
叛国,背叛
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he defected to the Soviet Union after the war .战后他叛逃到了苏联。
"late Middle English (as a noun, influenced by Old French