Question

关于英语语法问题in one well-known test,women and men were able to di

Answer 1

没省略什么东西，by smell alone 仅仅通过气味是个介词短语作方式状语，它插在了distinguish 分辨和它的宾语之间了，估计是这个造成了你的误解吧，实际上这个可以放在句子后面的

In one well-known test,women and men were able to distinguish clothing worn by marrage partners fro...