Question

求英语高手帮我解答下这个问题

1.Ecologists use the term “succession” to refer to the changes that happen in plant communities and ecosystems over time.
Succession是什么成分？

These changes—in plant numbers and the mix of species—are cumulative.
in plant numbers and the mix of species请问这个是主补吗？还是状语？如果是状语，是什么状语呢？

Answer 1

注意：succession是the term 的同位语，做use的宾语。
in plant numbers and the mix of species是对the changes的补充，是主语补足语。
满意，请采纳，谢谢。

Answer 2

同位语关系

Answer 3

宾语成分