The colon is in the last grid of the previous line, and the first grid of the next line is in double quotes.
colon
One of the punctuation marks commonly used in writing, ① English half angle is ":"; ② The whole English angle is ":"; (3) Chinese full-width ":"; ④ Chinese half angle is ":".
It usually means a pause after a hint or a hint below or a summary above.
In mathematical language: ① indicates the ratio relationship between them, such as 1: 2, x:y, f (x): g (y); ② Represents the two-point product of two dyadic vectors, such as AB: CD = (A C) (B D).
cite
Represents the part referenced in the text. There are double quotation marks and single quotation marks, single quotation marks are'' and double quotation marks are''.
People's Republic of China (PRC) national standard: use double quotation marks first, single quotation marks when internal reference is needed, double quotation marks when it is cited again, and so on. Keep double quotation marks in vertical lines, and use ""and "".
Ministry of Education of Taiwan Province Province: If internal quotation is needed, use single quotation mark ""before double quotation mark "". And it needs double quotation marks, so use single quotation marks, and so on.