treksn. 远距离行走 ( trek的名词复数 )，长途跋涉，艰难的旅程（尤指在山区） v. 艰苦跋涉，徒步旅行( trek的第三人称单数 )，（尤指在山中）远足，徒步旅行，游山玩水
英汉词典释义
[yóu shān wán shuǐ]
make a sightseeing tour; tour the scenic spots; do sightseeing among hills and up and down rivers; go on trips to scenic spots; relax by enjoying the landscape; wandering about to enjoy the beauties of nature