记忆方法
1、im- "not, opposite of" => "这里引申为：free from, exempt from" + mun- + -ity.
2、字面含义：free from or exempt from public service or duty, exempt from service or obligation. 也就是不用做公共服务，免除了公共服务。
3、按咱们古代的说法：就是不用服劳役。由此引申为：豁免、免除、免疫。
2、字面含义：free from or exempt from public service or duty, exempt from service or obligation. 也就是不用做公共服务，免除了公共服务。
3、按咱们古代的说法：就是不用服劳役。由此引申为：豁免、免除、免疫。
中文词源
immunity 免疫力
来自immune,免疫的。
英语词源
- immunity (n.)
- late 14c., "exempt from service or obligation," from Old French immunité and directly from Latin immunitatem (nominative immunitas) "exemption from performing public service or charge," from immunis "exempt, free," from assimilated form of in- "not, opposite of" (see in- (1)) + munis "performing services" (compare municipal), from PIE *moi-n-es-, suffixed form of root *mei- (1) "to change" (see mutable). Medical sense "protection from disease" is 1879, from French or German.
权威例句
- 1. The embassy official claimed diplomatic immunity and was later released.
- 那名使馆官员申请外交豁免，随后被释放。
- 2. Because of the immunity of the immature insects, it'simportant to spray regularly.
- 由于幼虫对药物有免疫力，因此必须经常喷药。
- 3. The police are offering immunity to witnesses.
- 警方对证人将免予起诉。
- 4. The vaccine provides longer immunity against flu.
- 这种疫苗对流感的免疫效力时间较长。
- 5. A strong immunity to reinfection develops after one year.
- 一年后能对再度感染产生强大免疫力.
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