219076.（2021•长安区一中•高二上二月）In conclusion，people around the world should be aware of the real situation of water shortage，protect the present water resources and explore （潜在的） ones scientifically.
203785.（2024•铁一中学•高一上期末）
It is because Spain took control of Peru in the 16th century and ruled until 1821 that Spanish is the main （官方的，正式的） language of Peru.
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