You can orient yourself by remembering that the hill is due north.只要记住这座小山位于正北方,你就能确定你所在的方位了.She lay still for a few seconds, trying to orient herself.她静静地躺了一会儿，试图弄清自己的方位。You will need the time to orient yourself to your...
Under this circumstances, researching the theories of technological leapfrogging and directing Chinese enterprise is very important.在这种情况下, 研究技术跨越的相关理论并指导中国技术跨越实践,就显得至关重要.The researching of free radical is basilic resear...