The colours are magnificent, but the question of exactly why some trees turn yellow or orange, and others red or purple, is something which has long puzzled scientists.
这些颜色很瑰丽，但究竟为什么有些树会变成黄色或橙色，而有些树会变成红色或紫色，这个问题一直困扰着科学家。
I like strong colors: red or purple are my favorites.
我喜欢亮丽的色彩：红色或紫色是我最喜欢的颜色。
Youth should appear red or purple spring, but now only piece of the withered petals whirled in the wind.
少年时代本应呈现咤紫嫣红春天，可如今也只剩下片片凋零的花瓣在风中回旋。
European orchid having lanceolate leaves spotted purple and pink to white or mauve flowers spotted or lined deep red or purple.
一种欧洲兰花，叶披针状、有紫色斑点，花色从粉色到白色或紫红色、花上有深红色或紫色斑点或条纹。
These new pigments tend to be red or purple in color, so trees that use them have red leaves in the fall-sometimes insanely bright red.
这类新色素通常是红色或紫色的，因此使用它们的树木落叶是红色的——有时会是鲜红色。
The tree can be used for decorative purposes as they have pink, red or purple flowers, which would (6) I the beauty of your yard or garden.
这棵树可用于装饰目的，因为他们有粉红、红色或紫色的花朵，(6)我的美丽的院子或花园。
A deficiency of potassium leads to a characteristic red or purple coloration of the leaves, poor root growth, and flower and fruit formation.
缺乏钾会导致叶子呈现红色或紫色，减少了根的生长以及花和果实的形成。
Some of the most prized tulips were white with purple streaks, or red with yellow streaks on the petals, even a dark purple tulip that was very much prized.
一些最珍贵的郁金香是白色带紫色条纹的，或红色、花瓣上带黄色条纹的，甚至深紫色的郁金香是非常珍贵的。
If you're used to munching on red tomatoes, try orange, or yellow, or serve purple cauliflower along with your usual white.
如果你经常吃红色的西红柿，试一试橙色、黄色或紫色的花椰菜代替通常所吃的白色的。
The flowers looked like those forest orchids, but they were yellow, unlike those purple or brown-red forest orchids.
这些花看起来像森林兰花，但是是黄色的，不像森林兰花是紫色或棕红色的。
Especially berries that are blue, red, or purple.
尤其是蓝莓，红梅或者紫莓会很有用。
They will be able to tilt the electoral balance and turn many red-or, conceivably, blue-states purple.
他们将能够左右竞选平衡，将许多红色(或者可能的情况下，蓝色)州变为紫色。
If you're used to munching on red tomatoes, try orange or yellow, or serve purple cauliflower along with your usual white.
如果你经常吃红色的西红柿，那么试试橙色的或是黄色的，用紫色的花椰菜代替通常所吃白色的。
They appear in shades of green, red, brown, yellow, blue or purple.
他们出现在色调的绿色，红色，褐色，黄色，蓝色或紫色。
Our eyesight would allow us to spot the red, yellow or purple fruit in the valleys and hills of a tropical garden that earth was at that time in history.
我们的视力让我们从热带花园的峡谷、高山上，一眼就可发现红黄或紫色的水果食用，历史上那个时代的整个地球都是热带花园。
With no obvious than shirt skirt as can be seen everywhere, blue or white, purple or red and black white big coat look to discern which school.
与不明显的仿佛随处可见的衬衫裙子相比，蓝白或白紫或红黑的大外套一眼望去就能分辨是哪一所学校了。
The skin becomes mottled blue or purple, then red.
皮肤呈蓝或紫的斑点，然后发红。
The Dark Twin looks purple or violet as the blue light it normally emits is mixing with the red dust in the atmosphere.
黑暗双星看起来是紫色或是紫罗兰色，因为它通常发出的蓝光与大气中的红尘相混合。
And if the purple red: nonmagnetic as high manganese steel, magnetic usually usually steel or low-alloy steel.
而假如变紫红色：无磁性的为高锰钢，有磁性的通常为通常钢或低合金钢。
Coarse weedy American perennial herb with large usually perfoliate leaves and purple or dull red flowers.
美洲多年生粗杂草，茎穿过巨大的叶子，花紫色或暗红色。
Ruby. Bright red colour of certain wines. Such wines are free from brown or purple tints.
宝石红：一些葡萄酒所拥有的亮丽的红色，这类葡萄酒不带有棕色或紫色的色调。
Ruby.. Bright red colour of certain wines. Such wines are free from brown or purple tints.
宝石红：一些葡萄酒所拥有的亮丽的红色，这类葡萄酒不带有棕色或紫色的色调。
The colors used in the drawings are conventional medical artist colors, with arteries in red and veins in purple or blue.
示意图中所使用的色彩是常规的医学标记色彩：动脉为红色，静脉为紫色或蓝色。
Either of two eastern North American plum trees or shrubs, Prunus alleghaniensis, having dark purple fruit, or P. americana, having yellow or red fruit.
生于北美东部的两种李子树或灌木之一，结深紫色果实的黑刺稠李，或结黄色或红色果实的金刺稠李。
In fact, they were traditionally red, blue, purple or even black, with gold and silver stitching.
实际上，传统的婚纱有红色，蓝色，紫色，甚至还有黑色，并伴随有金色和银色的丝线钩编。
Many toys and books for girls are pink, purple, or red, and are related to make up, dress up, cooking, and domestic affairs.
许多女孩玩具和书籍都是粉色、紫色、红色的，和化妆、穿衣、烹饪、家务联系在一起。
Any of numerous orchids of the genus pterostylis having leaves in a basal rosette and green flowers often striped purple or brown or red with the dorsal sepal incurved to form a hood.
pterostylis属的任何一种兰花，基生莲座叶丛，花绿色、常有紫色、褐色或红色条纹，萼片背部向内弯曲成盔状。
Which color do you think I should be associated with, white, blue, red, yellow, green, or purple?
你觉得你心目中的我和哪种颜色最配，白色，蓝色，红色，黄色，绿色，紫色？
Which color do you think I should be associated with, white, blue, red, yellow, green, or purple?
你觉得你心目中的我和哪种颜色最配，白色，蓝色，红色，黄色，绿色，紫色？
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