HSK 7-9
呵
hē动
(bound form) to scold; to expel breath; (onom.) laughter (usu. reduplicated); interjection of surprise; variant of 啊
老师低声呵住了喧闹学生。
Lǎo shī dī shēng hē zhù le xuān nào xué shēng.
The teacher quietly stopped the noisy students with a scolding.
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Appears across levels (7-9) in the HSK 3.0 word list.