他爬了上来，接着从一些尖硬的幼树上，砍下一些小桩，又把它们削得尖尖的。
He climbed out and from hard saplings cut stakes and sharpened them to a fine point.
避免和尖硬锐利的物质擦碰，避免受高压高热及化学试剂的腐蚀，以免擦毛或损伤。
Avoid and sharp hard sharp material to avoid the corrosion of high heat and chemical reagents, so as not to rub the hair or damage.
把蛋清搅成硬尖状。
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