los angeles, ca — students around the united states have been getting in touch with nature in a program run by the group, the nature conservancy. some teenagers from los angeles spent time on an isolated island off the california coast, a short distance from home, but a world away from the city.
changed ecosystem
located a little more than an h
资源难易程度:★★★★★★★★★★★★★★★
高考资源网版权所有 ©2005-2014
未经许可，盗用或转载本站资料者，本站将追究其法律责任！
