•All R45 aircraft have been grounded, after a defect in the engine cooling system was discovered.自从发现引擎冷却系统有缺陷之后，所有R45型飞机都已经停飞了。

•There are so many defects in our education system.我们的教育制度有太多缺陷了。

•It's a character defect in her that she can't ever accept that she's in the wrong.她在性格上有缺陷，因为她从来都不承认自己有责任。

•She suffers from a heart/sight/speech defect.她的心脏／视力有缺陷／她有语言障碍。

•The drug has been shown to cause birth defects.那种药物已被证明可导致新生儿先天性缺陷。

•Cystic fibrosis is caused by a genetic defect.囊胞性纤维症是由基因缺损引起的。

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•When the national hockey team visited America, half the players defected.国家曲棍球队访问美国时，有一半队员都叛逃了。

•The British spy, Kim Philby, defected to the Soviet Union/defected from Britain in 1963.英国间谍金‧菲尔比于1963年投奔到了苏联。