12点31用英语怎么说

12点31用英语表达为"twelve thirty-one".
"Twelve" 来自古英语 "twelf", "thirty" 来自古英语 "þrittig", "one" 来自古英语 "an"。
例句：
I will meet you at twelve thirty-one. (我会在12点31分和你见面)
The train leaves at twelve thirty-one. (火车在12点31分开)
Can you be ready by twelve thirty-one? (你能在12点31分前准备好吗？)