dùn
他顿了一下，又接着往下说。
Tā dùn le yīxià, yòu jiēzhe wǎng xià shuō.
He paused for a moment, then continued speaking.
一横的两头都要顿一顿。
yī héng de liǎng tóu dōu yào dùn yī dùn.
Both ends of the horizontal stroke should pause.
顿首
dùn shǒu
To kowtow; to bow with head touching the ground (formal salutation)