consumes and suppresses mussel populations, which in the absence of this starfish 9
can be a dominant species.
不懂这个this指代什么,好像多余. 和which的意思相同吧
which mussel populations指;this指Pisaster ochraceus
个人理解。
举报
10楼的请看
http://forum.chasedream.com/dispbbs.asp?BoardID=25&ID=55875
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