鲨鱼皮有很好的韧性，摸上去像砂纸一样磨手，容易切割。
The skin of the shark is very tough, sandpapery and abrasive, it could cut.
难道农场的工人也和我们一样懒，连镰刀也不磨利点？
Were farm workers as lazy as us not to grind sickles to be tartness?
低磨高磨，一样可以磨。
就象如果咖啡产业出现问题，我们也许会自己磨咖啡豆一样。
Like some problems consist in coffee production, we may grind coffee beans by ourselves.
就象如果咖啡产业出现问题，我们也许会自己磨咖啡豆一样。
Like some problems consist in coffee production, we may grind coffee beans by ourselves.
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