| 单词 | infirm |
|---|---|
| 音标 | [in'fə:m] |
| 解释 | a.虚弱的 |
| 红宝书 | 【英】 adj. 虚弱的(physically weak) 【考】 反义词：hale(强壮的 ) 【记】 in(不)+firm(坚定) →不坚定的 【同】 派生词: infirmity n. (虚弱feebleness; weakness) |
| 字源 | infirm (adj.) late 14c., "weak, unsound" (of things), from Latin infirmus "weak, frail, feeble" (figuratively "superstitious, pusillanimous, inconstant"), from in- "not, opposite of" (see in- (1)) + firmus (see firm (adj.)). Of persons, "not strong, unhealthy," first recorded c.1600. As a noun from 1711. |
| 不择手段背单词 | adj. 衰老体弱的; 意志不坚的; 不坚固的 【记】firm(n 公司adj 结实的; 坚固的); infirmity(n 虚弱; 缺点) 【反】hale(adj 强壮的; 老人矍铄的) |
| 趣味全助记 | 【记】in 不 + firm 结实 |
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