How to pronounce word in English - Learn English free online - rackarock - How to pronounce the english word rackarock in english. Start with S. Learn from me. - www.pronounceword.com

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rackarock. How to pronounce the english word rackarock.Start with S. Learn from me.

rackarock

英语发声

美语发声

网络释义

1、拉克洛

开挖地道所用之，为拉克洛（Rackarock），此类爆炸力强，但机能较不变。詹天助将此类矿山初次使用于地道开凿，以求施工平安。

短语

专业释义

英英释义

英汉双解大词典