ecological balance/equilibrium
- eg: Animals need to be treated with a humane attitude as they are essential to the ecological balance.;
alternative method
- eg: Computer stimulation is a great alternative method of animal testing.。
【雅思写作常用词汇:生态平衡】相关文章:
最新
2016-10-19
2016-06-13
2016-06-13
2016-06-13
2016-06-13
2016-06-13