所剩时间极少时的一种计时方法。时间以秒计算，逐秒报数。多用于棋类比赛中byo-yomi

• 小段虽早已进入了读秒，却在读秒声中镇定自若。

  Although Xiao Duan had long since entered the byo-yomi period, he remained calm and collected amidst the sound of the seconds counting down.

• 倒计时读秒的人们不约而同地在心里默数：60、59、58、57……

  The people counting down the byo-yomi were all silently counting as one: 60, 59, 58, 57...