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

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

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

VOA: special.2009.01.05