swimacross[over]ariver;游过一条河
swimbacktotheshore;游回岸边
travelroundtheworld;goonaworldtour;周游世界
HetravelledFrancefromendtoend.他游遍了法国。
haveawidecircleofacquaintances交游甚广
vagrant游民
theupper[lower,middle]reaches(ofariver)上[下,中]游
YouYuan游远