/ˈdi:fekt ||; ˈdifɛkt/noun [C] sth that is wrong with or missing from sb/sth 毛病；缺点；缺陷: a speech defect言语缺陷defects in the education system教育制度的缺点 ➔defective /dɪˈfektɪv ||; dɪˈfɛktɪv/ adj
defect²
/dɪˈfekt ||; dɪˈfɛkt/verb [I] to leave your country, a political party, etc and join one that is considered to be the enemy 叛国；变节；脱党 ➔defectionnoun [C,U] ➔defectornoun [C]