1. 這座工廠排出的化學(xué)物質(zhì)改變了整個地區(qū)的生態(tài)。
   Chemicals in the factory's sewage system have changed the ecology of the whole area.
2. 人類采用一切手段保持生態(tài)平衡。
   Mankind have been trying every means to maintain the balance of nature.
3. 這些大森林的毀壞會帶來生態(tài)上的嚴(yán)重后果。
   The destruction of these big forests could have serious ecological consequences.
4. 他開始研究生態(tài)學(xué)，并決心將他的一生獻(xiàn)身于這門科學(xué)。
   He started to study ecology and decided to devote his whole life to the science.

生的英語翻譯：

態(tài)的英語翻譯：