這就是他失敗的原因了。

That's the cause of his failure.

Source: Tatoeba

Sentence Composition

1 這就 zhèjiù
  1. immediately
  2. at once
=2 shì
  1. to be (followed by substantives only)
  2. correct; right; true
  3. (respectful acknowledgement of a command) very well
  4. (adverb for emphatic assertion)
=2 shì variant of shì
3
  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 and 他人 rén)
4 失敗 shībài
  1. to be defeated
  2. to lose
  3. to fail (e.g. experiments)
  4. failure
  5. defeat

classifier:

=5 de
  1. of; ~'s (possessive particle)
  2. (used after an attribute when it modifies a noun)
  3. (used at the end of a declarative sentence for emphasis)
  4. (used after a noun, verb or adjective to form a nominal expression, as in 皮革的 de "one made of leather" or 跑堂儿的 pǎotángrde "a waiter (literally, one who runs back and forth in a restaurant)" or 新的 xīnde "new one")
  5. also pr. or di in poetry and songs
=5 a taxi; a cab (abbr. for 的士 shì)
=5 really and truly
=5 (bound form) bull's-eye; target
6 原因 yuányīn
  1. cause
  2. origin
  3. root cause
  4. reason

classifier:

=7 le
  1. (completed action marker)
  2. (modal particle indicating change of state, situation now)
  3. (modal particle intensifying preceding clause)
=7 liǎo
  1. to finish
  2. (used with or after a verb to express (im)possibility, as in 忘不了 wàngbuliǎo "cannot forget")
  3. (literary) (usually followed by a negative such as or ) completely (not); entirely (not); (not) in the least
  4. to understand clearly (variant of liǎo)
=7 liǎo
  1. (of eyes) bright
  2. clear-sighted
  3. to understand clearly
=7 liào unofficial variant of liào