Invalidity
n. 无效, 无价值, 病弱\\n[医] 病废, 劳动能力丧失
📖 牛津释义
invalidity
n[U]
state of being invalid 无根据; 无道理; 无用; 无效
the invalidity of his passport 他的护照之无效.
🗣️ 情景例句
It doesn't mean you have to be a doctor.
这并不意味着你一定要当医生。
Why don't you change your route?
你们为什么不变更路线呢?
Postcards always spoil my holidays.
明信片总搅得我假日不得安宁。
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