自始至終

自始至终
zìshǐzhìzhōng
from start to finish (idiom)

CEDICT

Entry Composition

1 自始 zìshǐ
  1. from the outset
  2. ab initio
2 至 zhì
  1. to arrive
  2. most
  3. to
  4. until
3 終 zhōng
  1. end
  2. finish