為時已晚

为时已晚
wéishíyǐwǎn
already too late

CEDICT

already too late

Wiktionary

從時效上來看已經來不及了。

重編國語辭典

Entry Composition

1 為時 wéishí
  1. timewise
  2. pertaining to time
2 已 yǐ
  1. already
  2. to stop
  3. then
  4. afterwards
3 晚 wǎn
  1. evening
  2. night
  3. late