dǎ​kuǎ

defeat

打垮 dǎ​kuǎ
defeat verb
to defeat or overpower an enemy or opponent completely

We completely crushed the invading army.

destroy verb
to cause something to collapse, break down, or be ruined, such as a business or one's confidence

Successive setbacks broke his will.

Frequency

Movie subtitles
2.77 per million appears in 1% of films
Written text
1.16 per million

Sources

Definitions
CC-CEDICT