记忆方法
1. dig + it => digit => 挖它 => 用爪子挖它.
2. 因为咱们的先人、古人在计数、数数时最初都是用手指来计数、数数的。
3. Digit：第几头。远古人使用数字是为了知道自己的牲畜有几头，不会算了只能用指头数----手指，足趾，数字，数码。
2. 因为咱们的先人、古人在计数、数数时最初都是用手指来计数、数数的。
3. Digit：第几头。远古人使用数字是为了知道自己的牲畜有几头，不会算了只能用指头数----手指，足趾，数字，数码。
中文词源
digit 数字，手指
来自PIE*deik, 指出，说话，词源同dictionary,teach. 用于指手指，后也用于指数数，数字。
英语词源
- digit
-
digit: [15] Digit was borrowed from Latin digitus. This meant ‘finger or toe’, but its underlying etymological sense is probably ‘pointer’; it appears to come from an Indo-European base *deik-, which also produced Latin dicere ‘say’ (originally ‘point out’), Greek deiknúnai ‘show’, Sanskrit diç- ‘show’, and possibly English toe.
The word was used in classical times for a measure of length, a ‘finger’s breadth’, but the mathematical sense ‘any of the numbers from 0 to 9’ (originally as counted on the fingers) is a later development. Digitalis [17], the scientific name of the ‘foxglove’, is a modern Latin use of the Latin adjective digitālis ‘of the finger’, perhaps in allusion to the foxglove’s German name fingerhut ‘thimble’, literally ‘finger-hat’.
=> toe - digit (n.)
- late 14c., "numeral below 10," from Latin digitus "finger or toe" (also with secondary meanings dealing in counting and numerals), related to dicere "tell, say, point out" (see diction). Numerical sense is because numerals under 10 were counted on fingers. The "finger or toe" sense in English is attested from 1640s.
权威例句
- 1. Australia had 15 years of double-digit inflation.
- 澳大利亚有15年通货膨胀率维持在两位数。
- 2. Her telephone number differs from mine by one digit.
- 她的电话号码和我的只差一个数字。
- 3. The computer can multiply two 10 - digit numbers in 1 / 1000 second.
- 计算机能在千分之一秒内算出两个十位数数字的乘积.
- 4. I cannot see more than that, except beyond plankton is the digit zero.
- 再往远处我就什么也看不见了.只见浮游生物之外是零这个数字.
- 5. He mentally computed the square root of a hundred - digit number in fifty - two minutes .
- 他在 52分钟 内心算出了一个100位数的平方根.
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