1.without a doubt , t he central core of the northern - tier states is new york city , a metropolis that has a brashness all its own.
毫无疑问，北方这一连续的各州之中，核心地区是纽约市，一个很自以为是的大都会。
2.However, yield prospects declined in the northern tier of states due to cool weather.
但是，北方一些州的潜在收获率却因气温偏凉而下降。