invalid

英 [?n'v?l?d] 美[?n'v?l?d]
  • adj. 無效的;有病的;殘廢的
  • n. 病人;殘廢者
  • vt. 使傷殘;使退役
  • vi. 變得病弱;因病而奉命退役

TEM4IELTSCET6低頻詞考研常用詞匯

詞態變化


復數:?invalids;第三人稱單數:?invalids;過去式:?invalided;過去分詞:?invalided;現在分詞:?invaliding;

助記提示


1、val- "be strong" + -id.
2、含義:strong, effective, having force in law, legally binding, supported by facts or authority.
3、in- "not" + valid.

中文詞源


invalid 無效的

in-,不,非,valid,有效的。

英文詞源


invalid
invalid: see valid
invalid (adj.1)
"not strong, infirm," 1640s, from Latin invalidus "not strong, infirm, weak, feeble," from in- "not" (see in- (1)) + validus "strong" (see valid). Specific meaning "infirm from sickness, disease, or injury" is from 1640s.
invalid (adj.2)
"of no legal force," 1630s, from special use of Latin invalidus (see invalid (adj.1)).
invalid (n.)
1709, originally of disabled military men, from invalid (adj.1). Invalides is short for French H?tel des Invalides, home for old and disabled soldiers in the 7th arrondissement of Paris.

雙語例句


1. Margaret resides with her invalid mother in a London suburb.
瑪格麗特同她病弱的母親住在倫敦郊區。

來自柯林斯例句

2. At best Nella would be an invalid; at worst she would die.
內拉往好里說會落下殘疾,往壞處說可能會生命不保。

來自柯林斯例句

3. The treaty was declared invalid because it had not been ratified.
條約沒有得到批準,因此被宣布無效。

來自《權威詞典》

4. A passport that is out of date is invalid.
護照過期是無效的.

來自《簡明英漢詞典》

5. Dr. Smith looked in on the invalid the day before yesterday.
史密斯大夫前天去看望那個病人.

來自《簡明英漢詞典》

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