That's what we'll call it, the nutrient cycle of mangrove litter.

这就是我们所说，红林凋落物营养循环。

Deciduous means that the trees' leaves turn different colors and fall off each year.

落叶指叶子会变成不同颜色，并且每年都会凋落。

In some tropical forests, the trees' leaves will fall off in the dry season just like deciduous forests.

在些热带森林中，叶子在旱会像落叶林样凋落。

Just like the leaves falling every autumn, the trunks themselves return to the soil to feed the next generation.

就像是每年秋天凋落叶子，干再回到土壤中继续养育。

How many leaves has the tree grown and lost in its life?

这棵生中长出和凋落叶子有多少片呢？

Like the leaves fall and there's sparseness and a harshness to it.

就像叶凋落，留稀疏与严酷之感。

How beautiful when the rose petals fall away and you've got the rose hips.

玫瑰花瓣凋落，露出玫瑰果时，那景象多么美丽。

The boughs were scattered like shed petals.

枝散落，如同凋落花瓣。

Dead leaves floated on the surface of the water.

【surface】凋落叶漂浮在水面。

They are formed in the preceding year, a little while before the leaves begin to fall; and as they form, they loosen the old leaves, and soon push them off.

它们在前年就已经形成，就是在叶凋落之前小段时间形成；它们形成后就会松开老叶子，然后将它们挤掉。

" Fall colors" refer to the leaves on the trees that in many parts of the country – in the U.S. – change colors in the fall as the leaves begin to die and fall to the ground during winter.

指是上叶子， 在美国许多地区， 秋天时叶子开始变色并逐渐凋落， 到了冬天就会掉到地上。