Leaves fall down from trees in autumn.

在秋天，很多叶子都从树上飘落。

youdao

During autumn, the leaves change color and fall down from the trees.

在秋天，树叶变了颜色，从树上掉下来。

youdao

In autumn the leaves wither and fall off the trees.

秋天，树叶枯萎并从树上落下来。

youdao

In the fall, visitors can watch the sugar maple trees surrender their colorful autumn leaves.

VOA: special.2009.01.05

Each autumn, Jackson holds the Fall Arts Festival.

VOA: special.2009.02.16

House prices dropped in October compared with the previous month as the property market saw an autumn fall, according to the Nationwide.

BBC: House prices fell 0.7% in October, says Nationwide

Usually handset ASP level dips sequentially into 4Q11, but this autumn Nokia suffered such a steep ASP fall that the company was actually able to deliver a partial rebound into the Christmas season.

FORBES: Everything is Relative - Nokia Bounces as much as Apple

The final figures for last autumn's university intake in the UK show a fall in applications from men which was four times that among women.

BBC: Education & Family