在中国,历史以三十年为极限,我们不可能知道三十年以前的事。

In China, the history began thirty years ago; we can't know what happened any farther back than thirty years.

Source: Tatoeba

Sentence Composition

1 zài
  1. to exist; to be alive
  2. (of sb or sth) to be (located) at
  3. (used before a verb to indicate an action in progress)
2 中国 Zhōngguó China
3 历史 shǐ history

classifiers: ,

=4 old variant of
=4 old variant of
=4 abbr. for Israel 以色列 liè
=4
  1. to use
  2. by means of
  3. according to
  4. in order to
  5. because of
  6. at (a certain date or place)
5 三十 sānshí
  1. thirty
  2. 30
=6 Nián surname Nian
=6 nián year

classifier:

=6 nián
  1. grain
  2. harvest (old)
  3. variant of nián
=7 wéi
  1. as (in the capacity of)
  2. to take sth as
  3. to act as
  4. to serve as
  5. to behave as
  6. to become
  7. to be
  8. to do
  9. by (in the passive voice)
=7 wèi
  1. because of
  2. for
  3. to
=7 wéi variant of wéi
=7 wèi variant of wèi
8 极限 xiàn
  1. limit
  2. extreme boundary
9 我们 men we; us; ourselves; our
10 不可能 néng
  1. impossible
  2. cannot
  3. not able
11 知道 zhīdào
  1. to know; to become aware of
  2. also pr. zhīdao
12 三十 sānshí
  1. thirty
  2. 30
=13 Nián surname Nian
=13 nián year

classifier:

=13 nián
  1. grain
  2. harvest (old)
  3. variant of nián
14 以前 qián
  1. before
  2. formerly
  3. previous
  4. ago
=15 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
=15 a taxi; a cab (abbr. for 的士 shì)
=15 really and truly
=15 (bound form) bull's-eye; target
=16 shì
  1. matter
  2. thing
  3. item
  4. work
  5. affair

classifiers: , ,

=16
  1. alternative form of (zì, “to establish”)
  2. alternative form of (zì, “to stab”)