Subject + 感叹 + Clause
The verb 感叹 (gǎntàn) means "to exclaim," "to sigh with feeling," or "to lament" and expresses a strong emotional reaction, often of wonder, regret, or reflection. It conveys that someone is moved to express their feelings aloud. Use 感叹 before the content of the exclamation, which often follows as a clause.
他感叹时间过得太快了。
Tā gǎntàn shíjiān guò de tài kuài le.
He sighed that time passes too quickly.
看到家乡的变化,她忍不住感叹。
Kàn dào jiāxiāng de biànhuà, tā rěn bú zhù gǎntàn.
Seeing the changes in her hometown, she couldn't help but sigh with emotion.
游客们都感叹这里的风景太美了。
Yóukèmen dōu gǎntàn zhèlǐ de fēngjǐng tài měi le.
The tourists all marveled at how beautiful the scenery here is.