树叶枯黄了。

The leaves have turned yellow.

《新英汉大辞典》

树叶在炙热的阳光下易变枯黄。

The leaves are inclined to scorch in hot sunshine.

《柯林斯英汉双解大词典》

沿着一条穿过森林的小路向当地的高地 Shutlingsloe 走去，无意间我来到了一小块空地，随即立刻注意到在新雪映衬下的枯黄的草。

Walking up a path through the forest towards Shutlingsloe, a local high point, I came across a small clearing and immediately noticed the dead yellow grasses set against the fresh snow.

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