1.Anneal means to make harden steel soft and remove brittleness.
退火就是使淬火钢变软并消除其脆性。
2.Dip into an author
粗略地研究一个作家
3.Brittle things break easily.
脆的东西容易破碎。
to make metal or glass hard and good apparance you have to anneal them.如果想让金属和玻璃变硬和好看，你就得让他们冷却
it's a deep hole.那是很深的洞
glass is brittle.玻璃很脆
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