ecology造句
To keep
ecology in balance is our duty.
保持生态平衡是我们的职责.
Development has been guided by a concern for the
ecology of the area.
该地区的发展以注重生态为指导原则。
We are reproducing ourselves at such a rate that our numbers threaten the
ecology of the planet.
我们的繁衍速度太快，以至于人口数量对地球的生态系统造成了威胁。