hillyadj.多小山的;丘陵的
Hilly mountainous areas丘陵山区
hilly and gully regions沟壑区
hilly orchard management坡地果园管理
Hilly latosolic red soil丘陵赤红壤
hilly region of red earth红壤丘陵区
hilly region of left bank左岸山体
Hilly land in south China南方山地
Hilly landscape ecosystem山地丘陵区
hilly region floodproofing山丘区防洪
hilly and mountainous area丘陵山区