In plants, leaf fall and flowering are common responses to seasonal changes in day length.
在植物中，落叶和开花是对日长季节性改变的普遍反应。
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。
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。
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。
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。
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。
An aspen leaf turning fall colors.
白杨树的树叶转变为秋天的颜色。
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。
For the first row nearest the fans, they generally suggested trees that lose their leaves in the fall or trees with waxy leaf surfaces.
距离风扇最近的第一排树木，他们一般建议种植秋季落叶的树木或者带有蜡质叶表面的树。
One leaf can do little for another when the wind blows, the rain pours, or the hail begins to fall.
每当刮风下雨或开始下冰雹时，一片树叶并不能为另一片做些什么。
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。
On the leaf? But leaves fall down.
在叶子上，但叶子会飘落。
Corynespora leaf-fall disease of hevea rubber, caused by Corynespora cassiicola, is a newly found disease of hevea rubber in China, which threatens to Chinese natural rubber industry.
由多主棒孢引起的巴西橡胶棒孢霉落叶病是我国天然橡胶生产的潜在威胁。
There is not a worm we tread upon, nor a leaf that dances merrily as it fall before the autumn winds, but calls for our study and admriation.
被我们踩过的小虫子，或是在秋风中飘舞的落叶，一切都值得我们去探究和鉴赏。
If I am a leaf on your tree, I will fall down to look at your root, lying on you.
如果我是你树上的一片叶子，我将飘落下去，看看你的根，躺在你身边。
Whoever trusts in his riches will fall, but the righteous will thrive like a green leaf.
倚仗自己财物的、必跌倒。义人必发旺如青叶。
Unfortunately, the chemical processes responsible for changing leaf color also make leaves fall.
遗憾的是，正是让树叶变色的化学反应让树叶落地。
One leaf can do little for another when the wind blows, the rain pours, or the hail began to fall.
每当刮风下雨或开始下冰雹时，一片树叶并不能为另一片做些什么。
The main period of egg hatching, which is the favourable opportunity for its control, lasts ho the flower fall- en to the first leaf Spreda out.
越冬卵孵化盛期为落花后至第一片叶展开之际，这是防治的有利时机。
The change of leaf fresh weight for Acacia auriculaeformis was greater than that of Acacia cincinata during leaf water potential fall down.
绢毛相思叶片水势降低时，叶片鲜重的变化较大叶相思大。
In much the same way, the dazzling orange, red and yellow displays of forests in fall may be warning would-be leaf munchers of a tree's chemical defenses.
同样地，秋天的树林呈现出橘、红、黄等让人眼花撩乱的色泽，也可能是树木的一种化学防御方式，对可能的食叶动物发出警告。
Because of the shading of wood leaf layers and litter fall, soil evaporation and the range of soil moisture contents changing were small under forest canopy.
受冠层覆盖及植被根系影响，随着树干距离的增加，土壤含水率呈减少趋势。
Because of the shading of wood leaf layers and litter fall, soil evaporation and the range of soil moisture contents changing were small under forest canopy.
受冠层覆盖及植被根系影响，随着树干距离的增加，土壤含水率呈减少趋势。
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