1. The firm will proBably pack up and move northwest.
   这家商行可能要停业迁移到西北去了。
2. I often travel by Northwest airlines.
   我常坐西北航空公司的飞机旅行。
3. He returned to the Northwest after graduation.
   他毕业后回到西北部地区。
4. Lewis and Clark explored the Northwest.
   路易士和克拉克到美国西北部去勘查。
5. The wind chopped back to northwest.
   风向突然又转回西北。

　1个副词解释