我正是基于in nk可能产生歧义的考虑才不倾向选1。在the discovery of one feet and four teeth in nk中,in nk既可以修饰discovery,也可以修饰one feet and four teeth 或者单独修饰four teeth所以会产生歧义。 当然,我也同意sbbi的例子the annual cost to the United States of illiteracy in lost industrial output and tax revenues is at least $20 billion a year. of之前不应插入过多成分。 权衡二者我认为in nk产生的歧义造成的问题更大。