- 说到底 shuōdàodǐ ultimatelyin the final analysis; fundamentally; when all is said and done
- 归根到底 guīgēndàodǐ ultimatelyin the final analysis; fundamentally or at the root of the matter
- 强辩到底 qiǎngbiàndàodǐ argue stubbornlyto persist in a fallacious or weak argument until the very end without admitting defeat or error
- 打破砂锅问到底 dǎpòshāguōwèndàodǐ inquire persistentlyto go to the bottom of things (idiom)
- 拼到底 pīndàodǐ brave it outto fight or strive to the bitter end; to endure until the very finish
