Number + 记 + Noun
The measure word 记 (jì) is used to count instances or occurrences of actions, particularly strikes or blows. It functions as a classifier placed between a number and the action it quantifies. For example, 一记 means "one instance of."
他朝对手脸上狠狠来了一记重拳。
Tā cháo duìshǒu liǎn shàng hěnhěn lái le yī jì zhòngquán.
He threw a heavy punch right at his opponent's face.
裁判没有看到那一记犯规的动作。
Cáipàn méiyǒu kàndào nà yī jì fànguī de dòngzuò.
The referee did not see that foul.
她给了他一记响亮的耳光。
Tā gěi le tā yī jì xiǎngliàng de ěrguāng.
She gave him a loud slap across the face.