toughened
[toughen]的过去式和过去分词
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- For several weeks we toughened our scalps, cocked our ears to listen and kept mum
有那么几个星期，硬着头皮，把耳朵扯长一点，就听，话是一句不说。收藏 - Physically toughened;rugged.
身体结实的;强健的收藏 - You can crack this toughened glass, but you can't break it.
这种韧化玻璃只裂不碎。收藏 - Tempered in repeated struggles;toughened and hardened
百练成钢收藏 - The steel was toughened by a special process.
钢经过特殊加工变韧了。收藏
开心词场背单词
形容词解释：