问~Subgroup Modifiers

tianxiaohan78

Manhattan上Subgroup Modifiers这一小节的
书上这么说的：When you want to describe a part of a larger group with a modifier, use one of the following three Subgroup Modifier constructions.
Right:    This model explains all known subatomic particles, SOME OF WHICH WEREonly recently discovered.（这是正确形式之一，其他两种我就省略了）
Wrong: This model explains all known subatomic particles, OF WHICH SOME WERE only recently discovered.
想问下第二个句子为什么不对呢？ 十分不解啊~~~

tianxiaohan78

木有人理呀  纠结……

cptbtptp

我也看到那里不懂，求大牛帮帮忙啊~