秋天树叶会掉落。

The leaves fall off the trees in the fall.

Source: Tatoeba

Sentence Composition

1 秋天 qiūtiān autumn

classifier: 個
2 树叶 shùyè tree leaves
=3 会 huì
  1. can; to have the skill; to know how to
  2. to be likely to; to be sure to
  3. to meet; to get together
  4. meeting; gathering
  5. (suffix) union; group; association
  6. (bound form) a moment (Taiwan pr. huǐ)
=3 会 kuài (bound form) to reckon accounts
4 掉落 diàoluò to fall down