记忆方法
1、val- "be strong" + -id.
2、含义：strong, effective, having force in law, legally binding, supported by facts or authority.
2、含义：strong, effective, having force in law, legally binding, supported by facts or authority.
中文词源
valid 有效的
来自拉丁语valere, 强健的，勇敢的，词源同value，引申词义有效的。
英语词源
- valid
-
valid: [16] Something that is valid is etymologically ‘strong’, and hence ‘effective’. The word comes via French valide from Latin validus ‘strong, effective’, which was derived from the verb valēre ‘be strong’ (source also of English valiant, valour, value, etc). The negative form invalid [16] also goes back to Latin, but its specific application to infirm people, differentiated with a distinct pronunciation, was introduced from French in the 17th century.
=> valiant, valour, value - valid (adj.)
- 1570s, "having force in law, legally binding," from Middle French valide (16c.), from Latin validus "strong, effective, powerful, active," from valere "be strong" (see valiant). The meaning "sufficiently supported by facts or authority, well-grounded" is first recorded 1640s.
权威例句
- 1. For foreign holidays you will need a valid passport.
- 出国度假需持有效护照。
- 2. He recognized the valid points that both sides were making.
- 他认可双方观点中的合理之处。
- 3. All tickets are valid for two months.
- 所有的票在两个月内有效。
- 4. He did not accept this reply as valid.
- 他认为这个回答没有根据。
- 5. a bus pass valid for 1 month
- 公共汽车月票
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