啄木鸟正在使劲地啄树干。

The woodpecker is pecking the tree trunk vigorously.

Source: Tatoeba

Sentence Composition

1 啄木鸟 zhuómùniǎo woodpecker
2 正在 zhèngzài to be in the process of (doing sth); to be currently ...-ing
3 使劲 shǐjìn to exert all one's strength
=4 地 de
  1. -ly
  2. structural particle: used before a verb or adjective, linking it to preceding modifying adverbial adjunct
=4 地 dì
  1. earth
  2. ground
  3. field
  4. place
  5. land

classifier: 片
5 啄 zhuó to peck
6 树干 shùgàn tree trunk