我上次计算，估计我已经学会了两千五百个汉字左右。

Last time I counted, I estimated that I know around 2500 Chinese characters.

Source: Tatoeba

Sentence Composition

1 我 wǒ
  1. I
  2. me
  3. my
2 上次 shàngcì last time
3 计算 jìsuàn
  1. to calculate; to compute
  2. to consider; to think over
  3. to plot; to scheme
4 估计 gūjì
  1. to estimate; to assess; to calculate
  2. (coll.) to reckon; to think (that ...)
5 我 wǒ
  1. I
  2. me
  3. my
=6 已经 yǐjīng already
=6 已经 yǐjìng already
7 学会 xuéhuì
  1. to learn; to master
  2. institute; learned society; (scholarly) association
=8 了 le
  1. (completed action marker)
  2. (modal particle indicating change of state, situation now)
  3. (modal particle intensifying preceding clause)
=8 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 無 wú or 不 bù) completely (not); entirely (not); (not) in the least
  4. to understand clearly (variant of 瞭 liǎo)
=8 了 liǎo
  1. (of eyes) bright
  2. clear-sighted
  3. to understand clearly
=8 了 liào unofficial variant of 瞭 liào
9 两 liǎng
  1. two
  2. both
  3. some
  4. a few
  5. tael, unit of weight equal to 50 grams (modern) or 1⁄16 of a catty 斤 jīn (old)
=10 千 qiān thousand
=10 千 qiān used in 鞦韆 qiūqiān
11 五百 wǔbǎi five hundred
=12 个 gě used in 自個兒 zìgěr
=12 个 gè
  1. (classifier used before a noun that has no specific classifier)
  2. (bound form) individual
=12 个 gè variant of 個 gè
13 汉字 hànzì Chinese character(s)
14 左右 zuǒyòu
  1. left and right
  2. nearby
  3. approximately
  4. attendant
  5. to control
  6. to influence