invalid是什么意思
vt.使伤残；使退役；失去健康
n.病人，病号；残废者；伤病军人
vi.变得病弱；因病而奉命退役
网络释义：无效；病号；无效的；作废
invalid怎么读（音标发音）
复数：invalids 复数：invalided 复数：invalided 复数：invaliding 复数：invalids
派生词: invalidism invalidly
invalid例句及用法
1 . Margaret resides with her invalid mother in a London suburb.
玛格丽特同她病弱的母亲住在伦敦郊区。
2 . At best Nella would be an invalid ; at worst she would die.
内拉往好里说会落下残疾，往坏处说可能会生命不保。
3 . The treaty was declared invalid because it had not been ratified.
条约没有得到批准，因此被宣布无效。
来自《权威词典》
4 . A passport that is out of date is invalid .
护照过期是无效的.
来自《简明英汉词典》
5 . Dr. Smith looked in on the invalid the day before yesterday.
史密斯大夫前天去看望那个病人.
来自《简明英汉词典》
invalid相关短语搭配
1 . 无效合同
...invading-imbibing wetting phase 驱替-自吸润湿相invalid contract 无效合同invalid shot 废炮
1 . 无效簇
invaginate 收进鞘中invalid cluster 无效簇invalid 病人
1 . 无效事件
...intrinsically safe circuit(Exi)本质安全电路(Exi)invalid event无效事件invar levelling staff因瓦水准标尺
1 . 废票
general monthly ticket 通用月票invalid ticket 废票junction station 枢纽站