Livro Solutions - Elementar - Cultura 6

a valley that is deep and has very steep sides, through which a river is flowing usually

cânion, vale profundo

a trip that has been organized for a particular purpose such as a scientific or military one or for exploration

expedição, missão

very unusual, special, or surprising

extraordinário, excecional

an area containing still water that is comparatively smaller than a lake, particularly one that is made artificially

lagoa, poça

to prevent someone or something from being damaged or harmed

proteger, preservar

a range of things or people with the same general features but different in some details

variedade, tipo