ecosystems

例句:

• There are highly sensitive and delicately balanced ecosystems in the forest.
  森林里有高度敏感、灵敏平衡的各种生态系统.
  
• Madagascar's ecosystems range from rainforest to semi-desert.
  马达加斯加生态系统类型多样，从雨林到半荒漠等不一而足。
  
• The ultimate source of energy of all ecosystems is the sun.
  太阳是一切生态系统能量的基本来源.
  
• I want robots to set up new designer ecosystems.
  来自SA
• Really, they are the base of all ecosystems.
  来自SA
• What about the environmental impact to these delicate ecosystems.
  来自SA