plummet
🇺🇸
/ˈplʌmɪt/
🇬🇧
/ˈplʌmɪt/
To drop down quickly and suddenly from a high place or position.
The bird seemed to momentarily hover before it plummeted down to the earth.
鳥似乎暫時在空中懸停,然後猛地墜向地面。