心慌

HSK 7-9

xīnhuāng

to be nervous; to panic; heart racing

(dialect) irregular heart-beat

心慌了

xīnhuāng le

He felt nervous.

面对这个难题，他心慌不已。

miàndìng zhège nánlè, tā xīnhuāng bùyǐ

Facing this difficult problem, he was extremely nervous.