defects
A defect is a fault or imperfection in a person or thing.
He was born with a hearing defect.
他天生听力就有缺陷。
A report has pointed out the defects of the present system.
一份报告指出了现行体制的缺陷。
defects , defecting , defected
If you defect, you leave your country, political party, or other group, and join an opposing country, party, or group.
a KGB officer who defected in 1963.
一个1963年叛变的克格勃官员。