“吨”的拼音为：dūn...

每年他们淘出大约1.5吨金子。Every year they panned about a ton and a half of gold.需要30万吨谷类补充库存。Three hundred thousand tons of cereals are needed to replenish stocks.数百吨石油溢出流入大海。Hundreds of tons of oil spilled into the sea....

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