HSK 5
哎呀
āiyā叹
interjection of wonder, shock or admiration
哎呀，我把手机忘在家了。
Āi yā wǒ bǎ shǒu jī wàng zài jiā le.
Oh no, I left my phone at home.
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Other HSK words sharing a character
Also free:
New in the HSK 3.0 word list at level 5.