Education is the key to unlock the world's potential.

Meaning: This means that education is the most important thing that can help people reach their full potential and make the world a better place.

Choice of Words: Key is a small object that can be used to open a door or start a machine. Unlock means to open something that is locked. Potential refers to the abilities or possibilities that something has. When you put them together, the sentence means that education is the way to open up the possibilities of the world.

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