Your first challenge is to begin your upwards trek.

你的第一个挑战开始往上。

Sure sounds a lot easier than trekking into the dermatologist, right?

当然这听起来比去找皮肤科医生要容易地多，对不？

Yeah, so it was different times each trek.

的，? 每次徒步都在不同的时间段。

The sisters' treks are very different to other treks.

三姐妹的徒步旅行与其他徒步旅行有很大的不同。

This piece was inspired by Gregory's recent trek in the Gobi Desert.

这件作品的灵感来自格雷戈里最近在戈壁沙漠的长途。

Ancient humans ate as they trekked.

古人会在艰苦的途中进食。

That's why you put your whole family together and make this trek.

这就为什么你把你的家人团结在一起进行这次徒步旅行的原因。

The county digs public boreholes but residents must still trek many kilometers to reach them.

这个地区有公共钻井，但居民要长途几公里才能到达。

The 2.4-billion-dollar mission is the U.S. space agency's ninth trek to the Martian surface.

这项耗资24亿元的任国航天局第九次登上火星表面。

And she dreamed of trekking throughout the Himalayas one day.

她梦想有一天徒步穿越喜马拉雅脉。

Trekking solo in sub-zero attempts through Wisconsin.

独自一人在零下穿越威斯康星州。

This so-called lactase persistence trait probably spread as Neolithic groups trekked north and west through Europe.

这种所谓的乳糖酶持久性特征可能随着新石器时代的群体在欧洲向北和向西而传播。

How foolish it was for me to go out trekking today without 17 loaves of bread.

今天没有带 17 条面包就出去徒步旅行多么愚蠢啊。

Members also have the opportunity to trek to areas across Arizona to look for precious fungi.

成员们还有机会亚利桑那州各地，寻找宝贵的菌类。

The EWN treks are all about enjoyment.

EWN徒步旅行完全为了享受。

The trekking service is for female travellers.

徒步旅行服为女性旅行者提供的。

Trekking in the dark is not easy.

在黑暗中徒步旅行并不容易。

When Yang and I trekked through Jiulong, they were gone.

当我和杨穿过九龙时，它们已经不在了。

The hump stores fat, providing energy for their long, desert trek.

驼峰积聚着脂肪，为它们长距离的沙漠旅行提供能量。

This trek took us 11 days, 150 kilometers.

这次旅行花了11天，我们走了150公里。