英语词汇“keystone”的意思、释义、用法及双语翻译-时代网

词汇	keystone
释义	noun Changes to the welfare system are the keystone of the government’s reforms.
随便看	the fruits of the earth the fry the-fry thefry the fsa the-fsa thefsa the ft the-ft theft theft the ft 100 share index the-ft-100-share-index the ftc the-ftc theftc the ft index the-ft-index thefts the ftse 100 the-ftse-100 the FTSE Index the fuck the fuel poor the Fukushima I Nuclear Power Plant 打灯谜打炮打点打点滴打烂帐打烊打照面打照面(儿) 打照面儿打熬打牌打牙牌打牙祭打牙逗嘴打狗看主人打狠儿打猎打球打理打瓜打瓦打电报打电话打白条打的

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