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Ví dụ
She found a rare coin from the 19th century while cleaning out her grandfather's attic.
Each country has its own unique designs on their coins, reflecting its culture and history.
The government decided to issue a new coin to commemorate the upcoming national holiday.
Collecting coins has become a popular hobby for many people who enjoy discovering their value and rarity.
The vending machine only accepts coins, so he had to dig through his pockets to find some change.
