感叹 (gǎn tàn): ถอนหายใจ (ด้วยความรู้สึก)

Standing at the mountain top and looking at the sea of clouds below, he couldn't help but sigh at the wonders of nature.

Looking at old photos, Grandma sighed at how quickly time flies—the children have all grown up.

Hearing that he gave up a high-paying job to teach in a mountainous area, his friends all sighed in admiration at his courage and dedication.

After visiting the Forbidden City, the tourists all sighed in admiration at the grandeur and exquisiteness of ancient Chinese architecture.

She sighed that she hadn't studied foreign languages well when she was young, and now she always finds it inconvenient when traveling abroad.