托福写作：2012.2.17大陆托福写作考试机经回顾
托福写作机经 1. reading: Asian carp , in the Greak Lakes, too much will damage the local environment. 3 measures to prevent: 1, build a wall; 2. use electrical devices; 3. two-steps:first, use poision kill all the fish, second, reintrodue the local sp...