Please spell paradox backwards.(Use lower case)

Please spell paradox backwards.(Use lower case) lower-case letter是什么意思 lower-case是什么意思 Please use the clues to spell four four-letter words. with a lower-case superscript spell please=please spell 是什么意思 upper and lower case letters and numbers. contain both capital and lower case letters Spell it,please. spell it,please spell it,please! 什么是 business use case?