Her knuckles whiten as she clenches her hands harder.她的手握得越来越紧，指节都变白了。Ms Tyson also had her knuckles rapped for doing this.泰森女士也因为这么做而受到了指责。We rap the manufacturers on their knuckles if the toy is shoddy.如果玩具质量低劣，我们会痛斥制造...
The industrial production, research & development of ludwigite are reviewed. The significance of development also stated.述国内对硼镁铁矿工业生产 和 科研开发情况,以及硼镁铁矿开发的意义.The theory ofZone of Proximal Development from Vygotsky is of imp...