2. We bought a kilogram of lemons from the supermarket.
我们从超市买了一公斤的柠檬。
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3. We will take a chunk of some material and we will call it a kilogram.
我们取一大块物质，称它为一千克。
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4. Can you run a 140,000 kilogram train on just the steam generated by solar power?
仅仅依靠太阳能产生的蒸汽，14万公斤的火车能驱动起来吗？
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5. A device that weighs less than one kilogram is part of a mission that will allow scientists to deliver fourth generation or 4G mobile coverage to the moon in 2019.
6. Two rupees in India is almost nothing, so the old man bought a whole kilogram and started eating it.
在印度，两卢比几乎不算什么，所以老人买了整整一公斤，开始吃。
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7. The 240-kilogram robot was sent into the sky to survey Mars' landforms, geography situation, and something about water, ice, environment and other physical fields.
8. Where 50-kilogram king salmon once fought their way up waterfalls to lay their eggs in gravel beds, there now are only concrete walls holding back still water and deep beds of muddy deposits.
