大写，小写常见于钱币表示，比如发票上就有。
所以
大写英文翻译：in words
小写英文翻译：in numbers
发票上有金额大小写
发票金额大小写英文翻译
以上就这些，祝好运，谢谢。
大写：capital 英 [ˈkæpɪtl] 美 [ˈkæpɪtl]
小写：lowercase 英 ['ləʊəˌkeɪs] 美 ['loʊrˌkeɪs]
一、capital 【造句】：
Labour is the capital of our working men.
Missile attacks on the capital resumed at dawn.
The rebels took over the capital and set up a new government.
An earthquake hit the capital, causing panic among the population.
The school has received a large capital grant to improve its buildings.
二、lowercase 【造句】：
We did the logo in lowercase letters instead of capitals.
Use a combination of uppercase and lowercase letters.
Notes: Either uppercase or lowercase can be use for reserved word and identifier.
Should I scrap upper case and dash ahead with lower-case panache to show myself a proper mistress of the form？
Lowercase letters will match either lowercase or uppercase characters in the document, but upper-case characters will only match their exact counterparts.
小写lowercase
但是要注意用法,capitalization的动词形式是capitalize..比如"首字母大写"翻译为"to capitalize the first letter"..形容词形式是:capital,比如"大写字母"说成"capital letters"
lowercase既是名词:"小写(字母);又是动词:"用小写字母书写，打字，或排印";又能作形容词:"小写字型的"