THE COLON consists of two periods placed one above the other, thus =:=
Sometimes the passage ending with a colon is to be read with the voice
suspended; but it should generally be read with the falling inflection
of the voice.
The general rule, when you come to a colon, is to stop just long enough
to count three; or three times as long as you are directed to pause at a
comma.
Parker's Second Reader National Series of Selections for Reading, Designed For The Younger Classes In Schools, Academies, &C. · 第 88 / 92 题