将胡椒子储藏在密封容器里，当你需要的时候把它磨成粉。
Store the peppercorns in an airtight container and grind the pepper as you need it.
科学分析表明，这些颜色是源自赭石和其他铁氧化物磨成的细粉。
Scientific analysis reveals that the colors were derived from ocher and other iron oxides ground into a fine powder.
伦勃朗没法在美术商店买到一管管的颜料，他只能自己研磨做颜料，比如把天青石磨成粉来当蓝色颜料用。
Rembrandt didn't go to the local art shop and buy tubes of paint. He had to grind and mix his paints from things such as lapis lazuli to make blue.
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