Leaves wither and fall in autumn.

叶子在秋天会枯萎并掉落。

In autumn, the leaves begin to wither and fall.

秋天，树叶开始凋落。

The fruits will wither and fall after they ripen.

果实成熟后会凋落。

His dreams wither and fall in the face of reality.

他的梦想在现实面前凋落了。

These plants will wither and fall in the absence of water.

这些植物在缺水的情况下会凋落。

These flowers will wither and fall quickly in the cold weather.

这些花在寒冷的天气里很快就会凋落。

Will be afraid my heart to wither and fall gradually.

更害怕我的心会渐渐地凋落。

As the summer passes, all the other parts of the flower wither and fall off; but the seed-vessel grows and thickens, until it becomes a round fleshy apple.

夏天过去的时候，花朵的其他部分就都枯萎凋谢了，但是子房却一直长大、变粗，最后变成了圆圆的、多肉的苹果。