1. 艰苦跋涉：stereotype 成见 | traitor 背叛者 | trek艰苦跋涉

2. 旅行;长途跋涉：take it easy 从容;轻松;不紧张 | trek 旅行;长途跋涉 | jungle 热带丛林

3. 长途跋涉之旅：subway 地铁 | trespass in national airspace 侵犯领空 | trek 长途跋涉之旅

1. (通常指徒步)艰难旅行，跋涉，远足
If you trek somewhere, you go on a journey across difficult country, usually on foot.

e.g. ...trekking through the jungles...
徒步穿过丛林
e.g. This year we're going trekking in Nepal.
今年我们准备去尼泊尔远足。

2. (通常因疲惫而缓慢勉强地)行进，拖着腿走
If you trek somewhere, you go there rather slowly and unwillingly, usually because you are tired.

e.g. They trekked from shop to shop in search of white knee-length socks.
他们拖着步子从一家商店走到另一家，寻找齐膝的白袜子。

noun

1. any long and difficult trip

2. a journey by ox wagon (especially an organized migration by a group of settlers)