铅笔头钝了。

The point of the pencil has become dull.

Source: Tatoeba

Sentence Composition

1 铅笔 qiānbǐ (lead) pencil

classifiers: 支, 枝, 桿
=2 头 tóu
  1. head
  2. hair style
  3. the top
  4. end
  5. beginning or end
  6. a stub
  7. remnant
  8. chief
  9. boss
  10. side
  11. aspect
  12. first
  13. leading
  14. classifier for pigs or livestock

classifier: 個
=2 头 tou suffix for nouns
3 钝 dùn
  1. blunt
  2. stupid
=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 無 wú or 不 bù) completely (not); entirely (not); (not) in the least
  4. to understand clearly (variant of 瞭 liǎo)
=4 了 liǎo
  1. (of eyes) bright
  2. clear-sighted
  3. to understand clearly
=4 了 liào unofficial variant of 瞭 liào