Deepness of earthy, excavate can set monolayer or multilayer timbering structure all round basis radical hole, use tool type steel commonly..是什么意思_Deepness of earthy, excavate can set monolayer or multilayer timbering structure all round basis radical hole, use tool type steel commonly..在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句