System: an assemblage or combination of things (parts) forming a complex or unitary whole
系统：事物（部件）的集合或组合，形成复杂或单一的整体
Ecology majors study the web of living and nonliving things in an environment to understand how the whole system works.
生态学专业通过研究环境中生物和非生物网来理解整个生态系统是如何运行的。
Ecology majors study the web of living and nonliving things in an environment to understand how the whole system works.
生态学专业通过研究环境中生物和非生物网来理解整个生态系统是如何运行的。
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