Leaves fall in autumn but grow in spring.

叶子在秋天落下，但在春天生长。

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On windy days, leaves fall on the ground and the road looks beautiful.

在刮风的日子里，树叶落在地上，道路看起来很漂亮。

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The leaves fall in the fall.

叶子在秋天都掉了。

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That leaves just four. I want to see the last one fall before it gets dark.Then I'll go,too."

VOA: special.2009.08.01

The leaves are about to fall but they haven't yet fallen.

这些叶子似坠非坠。

耶鲁公开课 - 弥尔顿课程节选

For the first row nearest the fans, they generally suggested trees that lose their leaves in the fall or trees with waxy leaf surfaces.

VOA: special.2009.09.08

When they do, his googly eyes shake wildly and leaves fall from the tree.

FORBES: Magazine Article

When they do, his googly eyes shake and leaves fall from the tree.

FORBES: X Is For Entertainment

"This is not a time for checks and balances, " a close associate of the prime minister told me in confidence in the autumn of 2010, as we sipped the golden wines of Tokaj and watched the golden leaves fall in the gathering dusk.

BBC: Are Hungary's reforms a step too far?