A contrail is the visible vapor trail behind airplanes or rockets traveling at high altitudes.
这团痕迹可能是飞机或火箭飞上高空后留下的航迹云。
The tentacles of a box jellyfish trail behind it and can reach 15 feet (4.6 meters) in length.
一只盒子海蜇的触须牵引式的它能延伸到15英尺(4.6米)长度。
When emperor penguins glide through the water, tiny air bubbles trail behind. On land, they are much less graceful.
这是企鹅们滑入水中的一刻，身后带着一串长长的气泡。在陆地上，他们可远没有这么优雅。
He resembled a deer, that throws one ear back upon the trail behind, and one ear forward, to know what is ahead.
他就象一头鹿一样，一只耳朵撩到后面，另一只耳朵则向前伸着探寻着什么。
The tentacles of a box jellyfish (Chironex fleckeri) trail behind it and can reach 15 feet (4.6 meters) in length.
一只盒子海蜇的触须牵引式的它能延伸到15英尺（4.6米）长度。
The light from the Christmas candles rose higher and higher, then one of the lights fell, leaving a trail behind it.
从圣诞烛光越升越高，然后灯光一下跌，留下了背后的线索。
Because of this, we kept looking back, wondering if we were leaving a trail of oil and petrol behind us.
因此，我们不时地掉过头，怀疑车后是否留下了机油和汽油的痕迹。
The Web companies are, in effect, taking the trail of crumbs people leave behind as they move around the Internet, and then analyzing them to anticipate people’s next steps.
事实上，网站公司通过追踪人们在浏览网页时遗留的信息，加以分析，接着推断人们的下步行为。
The idea is that we leave this trail of bacteria behind us, and that trail may be informative.
我们的想法是我们将这种细菌追踪法留下来，这些方法有一天可能能够提供有用的信息。
Sometimes the only clue you have to SRED is the trail of bread crumbs you leave behind.
有时，你留下的面包屑痕迹是暗示你患有与睡眠有关饮食失调症的唯一线索。
The world is complicated -- and our dynamic digital fossils trail along behind us, exposing us in new ways.
世界是复杂的，我们在数字时代里留在身后的遗迹正以新的方式将我们暴露于人前。
Every success has a trail of failures behind it, and every failure is leading towards success.
每一次的成功背后总是有着一连串的失败，而每一次的失败却使你离成功更近一步。
Wherever it went, it left behind it a trail of dead deer and small animals like rabbits. Paw prints were seen in a number of places and puma fur was found clinging to bushes.
无论它走哪儿，一路上总会留下一串死鹿及死兔子之类的小动物，在许多地方看见爪印，灌木丛中发现了粘在上面的美洲狮毛。
Comets leave a trail of debris behind them that can lead to meteor showers on Earth.
彗星会在经过的地方留下一些碎片，这些碎片可以引起地球上的流星雨现象。
When something doesn't work in the behind-the-scenes trail of format transformations, it is our job to eyeball the intermediate formats, XML included.
当在格式转换的幕后行踪中出现问题时，我们的工作就是详查中间格式(包括XML)。
NATURAL disasters strike rich countries as well as needy ones, but the trail of devastation they leave behind is usually far greater in poor places.
穷国和富国同样会遭受自然灾害，可是灾害过后贫穷地区则要面对更加残酷的景象。
Test coverage tools modify your code to leave behind a trail of "bread crumbs" during execution (hence the names of the tools I'm targeting in this column).
测试覆盖工具旨在修改代码，使之在执行期间留下一条“面包屑”踪迹（这也是我在这一期关注的工具的名称由来）。
It will be remembered that Fannicot's company had left behind it a trail of bodies. Twenty corpses lay scattered here and there on the pavement, through the whole length of the street.
整条街的路面上，这儿那儿，躺着将近二十具尸体。
She limped on, leaving a trail of bloody footprints on the stones behind her.
她一瘸一拐地走着，身后的石头上留下两行血红的足迹。
Every success has a trail of failures behind it, and every failure is leading towards success.
每份成功背后都有无数的失败，每一次失败都是通往成功的尝试。
Carrying the girls, the king and Queen ride their horses out of the kingdom. Snow streams from Elsa's hands, leaving a trail of ice behind them.
国王和王后骑着他们的马，带着小女孩们离开王国。雪从艾尔莎的手中流下，在他们身后留下一道冰。
When the brush grew thicker, they let go of my hands and we raced down the trail one behind the other.
灌木丛逐渐茂密，他们松开我的手，一个接一个跑上小径。
Wherever it went, it left behind it a trail of dead deer and small animals like rabbits.
无论它走到哪儿，总会留下一串鹿，兔子之类的小动物的尸体。
"Data exhaust" -the trail of clicks that Internet users leave behind from which value can be extracted-is becoming a mainstay of the Internet economy.
“数据废气”—网络用户点击后所留下来能被萃取数值的踪迹—正成为网络经济的主要支柱。
Dany could still see the trail of corpses she had left behind her crossing the Red Waste.
丹妮仍旧能看到在穿越红色荒野时，被留下的尸体痕迹。
Every success has a trail of failures behind it, and every failure is leading towards success.
每一次成功的背后都是一串串的失败，而每一次失败都更靠近成功。
It pointed mouth big ears, long body, short behind trail a long tail, systemic palm red, black, white tail pointed deafness, tail base has a hole, can emit a pungent odor.
它尖嘴大耳，长身短腿，身后拖着一条长长的大尾巴，全身棕红色，耳背黑色，尾尖白色，尾巴基部有个小孔，能放出一种刺鼻的臭气。
It pointed mouth big ears, long body, short behind trail a long tail, systemic palm red, black, white tail pointed deafness, tail base has a hole, can emit a pungent odor.
它尖嘴大耳，长身短腿，身后拖着一条长长的大尾巴，全身棕红色，耳背黑色，尾尖白色，尾巴基部有个小孔，能放出一种刺鼻的臭气。
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