France has always been protected by imposing natural geography from every direction except for the east.
除了东部以外,法国一直以来都在各个方向受到自然地理环境的保护。
TED-Ed(视频版)
These include things like natural geography and climate, food availability, and the presence or absence of predators.
这些包括自然地理和气候、食物供应以及捕食者的存在与否等。
英语百科
Physical geography
Physical geography (also known as geosystems or physiography) is one of the two major sub-fields of geography. Physical geography is that branch of natural science which deals with the study of processes and patterns in the natural environment like the atmosphere, hydrosphere, biosphere, and geosphere, as opposed to the cultural or built environment, the domain of human geography.