英语词汇“toughening”的意思、释义、用法及双语翻译-时代网

词汇	toughening
释义	请查阅词条:toughen
随便看	uproot uprush ups and downs upscale upsell upselling upset upsetting upside down upskill upskilling upstage upstairs upstanding upstate up sticks upstream upsurge upswell upswept upswing uptake uptalk uptempo up the creek (without a paddle) 圆熟圆珠笔圆白菜圆盘圆盘犁圆盘耙圆稳圆笼圆筒圆舞曲圆范圆融圆规圆谎圆转圆通圆钢圆锥圆锥台圆锥曲线圆锥面圆锯圆雕圆面圆顶

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