短语和例子 invalid1 adj. 1.有病的，病弱的，伤残的。 2.病人用的。 短语和例子 invalid soldiers 伤兵。 an invalid chair 病人用椅。 an invalid diet 病号菜饭。 n. 病人，病弱者，病号，伤病军人。 a resort of invalids 伤病员疗养地。 vt. 1.使病弱；使伤残。 2.把…作为伤病员处理。 be invalided for life 成终身病人。 be invalided home 被作为伤病员送回家。 be invalided out of the army 因伤病而奉命退伍。 vi. 1.失去健康。 2.因伤病而退伍。 adj. 1.无用的；不能成立的。 2.【法律】无效的，作废的。 短语和例子 invalid arguments 站不住脚的论点。 invalid cheques 无效的支票。 invalid claims 无效的要求。 invalid contracts 无效的契约。 declare a marriage invalid宣布结婚无效。 adv. -ly
having no cogency or legal force; "invalid reasoning"; "an invalid driver''s license"
no longer valid; "the license is invalid"
injure permanently; "He was disabled in a car accident" 同义词：disable, incapacitate, handicap,
force to retire, remove from active duty, as of firemen
someone who is incapacitated by a chronic illness or injury 同义词：shut-in,
例句与用法
1.
A long illness had emaciated the invalid . 长期卧病使这病人瘦弱了。
2.
She thought of the old invalid gentleman . 她想起了生病的老先生。
3.
The invalid lay propped on the pillows . 那病弱者倚靠在枕头上。
4.
Your action has rendered our contract invalid . 你们的这种做法导致双方的合同失效。
5.
This certificate is invalid . 这张证明已失效。
6.
The student was late and gave an invalid excuse . 这学生迟到了，并且做了一个不得力的辩解。
7.
This certificate is invalid . 此证明无效。
8.
Mrs. du quesnay, he knew, supported an invalid husband . 他知道，杜奎斯奈夫人赡养残废的丈夫。
9.
After the old man died, his children found that his will was invalid . 这位老人死后，他的子女们才发现他的遗嘱是作废的。
10.
He has a hard cross to bear; his wife is an invalid and his own health is not good . 他负担很重，妻子残废，自己身体又不好。
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