Even though Clovis points, spear points with longitudinal grooves chipped onto their faces, have been found all over North America, they are named for the New Mexico site where they were first discovered in 1932. 这句话为ＯＧ１２ ９８题 死活没看懂句子意思和结构． have been 是修饰谁的？they are中得they 又是指代谁的？Clovis 后边的points 和spear 后边的points 都是什么意思？跪谢．．
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发表于 2011-10-13 02:36:17
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