英语语法分析

There may be other "cranes" (Daniel Dennett's term, which he opposes to "skyhooks") that we have not yet discovered or imagined.

或许存在着其他我们尚未发现或想象出的“起重机”（丹尼尔•丹尼特，Daniel Dennett，用来反驳“天勾”的术语）。