The important fact is that the twopoles of the magnet work in opposite ways.
重要的事实是，磁体两极的运行方式完全相反。
《柯林斯英汉双解大词典》
2
Surveyors marched inland from the coast for thousands of miles, stopping at increments of as little as a few feet to measure their elevation, and marking each increment with twopoles.
测量员从海岸向内陆行进数千英里，每增加几英尺就停下来测量海拔，每增加一英尺就用两根杆子做标记。
3
Michelle Obama falls somewhere between the twopoles.