他終於露出馬腳了。

He has finally shown his true colors.

Source: Tatoeba

Sentence Composition

1 他 tā
  1. (third-person singular) (since the early 20th century, usu. male) he; him; his
  2. (bound form) other; another; some other (as in 他日 tārì and 他人 tārén)
2 終於 zhōngyú
  1. at last
  2. in the end
  3. finally
  4. eventually
=3 露出馬腳 lùchūmǎjiǎo
  1. to reveal the cloven foot (idiom); to unmask one's true nature
  2. to give the game away
=3 露出馬腳 lòuchūmǎjiǎo synonym of 露馬腳 /露马脚 (lòumǎjiǎo)
=4 了 le
  1. (completed action marker)
  2. (modal particle indicating change of state, situation now)
  3. (modal particle intensifying preceding clause)
=4 了 liǎo
  1. to finish
  2. (used with 得 dé or 不 bù after a verb to express (im)possibility, as in 忘不了 wàngbuliǎo "cannot forget")
  3. (literary) (usually followed by a negative such as 无 wú or 不 bù) completely (not); entirely (not); (not) in the least
  4. to understand clearly (variant of 了 liǎo)
=4 了 liǎo
  1. (of eyes) bright
  2. clear-sighted
  3. to understand clearly
=4 了 liào unofficial variant of 瞭 liào