呵
hē
(bound form) to scold
to expel breath; (onom.) laughter (usu. reduplicated); interjection of surprise
This is an interjection or onomatopoeia — it represents a sound.
他呵呵地笑了，完全不当回事。
tā hē hē de xiào le, wán quán bù dāng huí shì。
he laughed heh-heh and didn't take it seriously at all.
妈妈大声呵斥孩子，让他马上停下来。
mā ma dà shēng hē chì hái zi, ràng tā mǎ shàng tíng xià lái。
the mother loudly scolded the child, telling him to stop at once.