紧紧 + 地 + Verb / Verb + 得 + 紧
The adjective 紧 (jǐn) means 'tight' or 'firm,' describing something held closely or securely. It often appears in its reduplicated adverb form 紧紧 (jǐnjǐn), meaning 'tightly,' to emphasize the intensity of a gripping or holding action. It commonly modifies verbs like 抓住 (to grab) or 抱住 (to hold).
她紧紧抓住妈妈的手,不肯松开。
Tā jǐnjǐn zhuāzhù māma de shǒu, bù kěn sōngkāi.
She held tightly onto her mother's hand and refused to let go.
这条裤子太紧了,我穿不上。
Zhè tiáo kùzi tài jǐn le, wǒ chuān bù shàng.
These pants are too tight; I can't put them on.
他紧紧抱住孩子,生怕弄丢了。
Tā jǐnjǐn bàozhù háizi, shēngpà nòng diū le.
He held the child tightly, afraid of losing him.