持续时间

liǎng suì hái zi de zhù yì lì chí xù shí jiān dōu hěn duǎn

两岁孩子的注意力持续时间都很短。

Two-year-olds have short attention spans.

yīn fú hòu de diǎn jiāng qí chí xù shí jiān yán cháng yī bàn

音符后的点将其持续时间延长一半。

A dot after a note lengthens its duration by half.