1·Autumn leaves begin to turn brown.
秋天的落叶开始变成褐色。
2·It sounds paradoxical, because the idea behind this hypothesis is that the red pigment is made in autumn leaves to protect chlorophyll, the light-absorbing chemical, from too much light.
这听起来很矛盾，因为这一假设背后的理念是，树叶在秋天产生的红色素是用于保护叶绿素这种吸收光的化学物质，以免它吸收过多的光。
3·She likes to kick the autumn leaves.
她喜欢用脚踢秋叶。
4·The red autumn leaves of the Fragrant Hills are the most beautiful.
香山的红叶是最美的。
5·The wind blows the autumn leaves.
风吹动着秋天的树叶。
6·It was a fluttering autumn leaves.
那是一个落叶飞舞的秋日。
7·The autumn leaves are a lot like raising kids.
秋天的叶子跟养孩子很像。
8·I love the bright colors of the autumn leaves.
我喜欢秋天树叶的鲜艳的颜色。
9·I love the bright colors of the autumn leaves.
我喜欢秋天树叶的明亮颜色。
10·The autumn leaves floated upon the fall breeze.
树叶在秋天的微风中飘荡。