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1·The weakened fall leaf then becomes vulnerable to the highly destructive effects of the oxygen created by the excited chlorophyll molecules.

活跃的叶绿素分子产生的氧气破坏性强，秋天衰弱的树叶随后变得更容易受到影响。

2·Do you ever wonder why a fall leaf changes color?

你们有没有想过为什么落叶会变色？

3·The first was set in New England with beautiful fall leaf colors and a nice ocean coast.

第一个场景是在新英格兰，有漂亮的落叶颜色和美丽的海岸。

4·Moreover, the problem of oversensitivity to light is even more acute in the fall, when the leaf is busy preparing for winter by dismantling its internal machinery.

此外，对阳光过度敏感的问题在秋天更为严重，因为此时叶子正忙着通过“拆卸内部机构”为冬天做准备。

5·Buck scrapes are generally created after leaf-fall in autumn, which is just before or during the rut.

雄鹿窝通常出现在秋天落叶之后，也就是发情之前或发情期间。

6·Outside, leaf shadows twist and fall like embers.

外面，树叶的阴影扭曲着下降，像余烬一般。

7·The leaves are beginning to fall, and soon only two things will be hanging from the trees: the last leaf and the first football coach.

叶子们开始飘落，不久就只会有两个东西还悬在树上：最后一片叶子和第一个足球教练。

8·An aspen leaf turning fall colors.

白杨树的树叶转变为秋天的颜色。

9·Eggs are laid on leaf surfaces and when hatched the larvae are washed off or fall into water below.

它们将卵产在树叶表面，然后孵化的幼蛙被雨水冲刷或直接掉落到叶下面的水中。

10·At the bottom of each slippery-sided leaf is a pool of water into which unlucky insects fall and drown.

猪笼草每个滑面叶子的底部都是一个水池，倒霉的昆虫落进去就会被淹死。