[N-VAR 可变名词]地形;地势;地带Terrain is used to refer to an area of land or a type of land when you are considering its physical features.
[usu with supp]
The terrain changed quickly from arable land to desert.
那个地带很快就从耕地变成了沙漠。
...a tortuous eight-hour coach ride around 1,200 bends of rough terrain.
在崎岖不平的地势上拐了 1,200 个弯、长达 8 小时的冗长的长途汽车旅行
Oxford
ter·rain/təˈreɪn; NAmEtəˈreɪn/noun[countable , uncountable ]used to refer to an area of land when you are mentioning its natural features, for example, if it is rough, flat, etc. 地形;地势;地带◆difficult/rough/mountainous, etc. terrain难以通过的地带、崎岖不平的地形、山地等☞synonyms at