The first English settlers to establish a permanent colony in America did it not at Plymouth but along the shore of the James River west of Chesapeake Bay.
it not at Plymouth but
so not at Plymouth but
not at Plymouth but instead
not at Plymouth but did so
it not at Plymouth but rather
但是再看第二遍的时候有点不确定
觉得主要的还是要关注not 和 but 之间有那么一点点平行的意思