On the trail that skirts the marsh grass, a dense cloud of bloodlust envelops the visitor.

在沼泽草丛边缘的小路上，一团乌压压的嗜血蚊子笼罩着来到这里的人。

Canine detectives on the trail of an unwanted import.

警犬在追踪有害的进口物。

I think we're on the trail of several crimes.

我认为我们在查的是连环犯罪。

The man walked down the trail on a cold, gray day.

天气又阴又冷，他沿着小路往前走着。

So it is really important that we do stay on the trail.

因而我们保持在这个足迹上是非常重要的。

I'd really hoped to keep my feet dry on the trail today.

我真希望今天能在山路上保持脚是干的。

It was clear to me that you were on the trail of Slytherin's heir.

我看得出来，你在寻找斯莱特林的继承人。

Today, I'm on the trail of a T-Rex, tomorrow I'm tracking a Stegosaurus.

目前，我在追踪一只霸王龙，明天，我又去追踪剑龙。

The hikers share shelters for the night or talk to each other on the trail.

这些徒步旅行者会共用帐篷过夜，或者在旅途中互相交谈。

Time was flying, and they should have been on the trail an hour gone.

时间过得很快, 他们本来都该跑出一小时的路了。

He shared his experiences of healing on the trails with a reporter from the Associated Press.

他与美联社的一名记者分享了他在山径上的康复经历。

She let her legs go limp like a spoiled child, and sat down on the trail.

她像个宠坏了的孩子，腿一软坐在了雪道上。

We do a lot of hiking on the trails and a lot of hiking off the trails.

我们经常在山路上徒步旅行，也经常在山路外徒步旅行。

So, he has been treating his mental health on the trail and in other places in nature.

因此，他一直在山径和自然界其他地方治疗他的精神健康。

" These show dead and wounded migrants on the trails, in camps and in medical facilities… " the report said.

“这些照片显示了在小路上、营地里和医疗设施中死亡和受伤的移民。”

This way, snakes can determine where an odor cue is strongest and stay on the trails of prey and mates.

这样，蛇就能确定哪里的气味暗示最强烈，并紧跟猎物和配偶的踪迹。

The mother bear is on the trail of a herd of deer, but the deer are also wise to predators.

熊妈妈在追踪一群鹿，但鹿也会很机敏地对付掠食者。

And that set me then on the trail of trying to see if I could reproduce that in other patients.

这让我开始尝试能否在其他病人身上复制这种自愈能力。

They swung out on the trail with remarkable lack of exertion, turned their heads uneasily, and stopped in surprise.

拉橇狗甩开步子走上雪道时一点没吃上劲, 不安地回头一看, 便惊讶地停了下来。

This dog was thrashing about in a death-struggle, directly on the trail, and Buck passed around him without stopping.

这条狗就躺在那条足迹上, 正翻滚着向死亡抗争。巴克一刻不歇地绕过了他。