yà
astounded
The speech radical carries the meaning: words that burst out in astonishment. 牙 contributes the sound yà and nothing more.
他听到这个消息,面露讶色。
tā tīng dào zhè ge xiāo xi,miàn lù yà sè。
When he heard the news, a look of astonishment appeared on his face.
她对那个结果感到十分惊讶。
tā duì nà ge jié guǒ gǎn dào shí fēn jīng yà。
She felt extremely astonished at that result.
惊讶
jīng yà
amazed
怪讶
guài yà
astonished
讶异
yà yì
to be surprised