指南针用于确定地理方向的设备，通常包括一个或多个水平安装或悬挂的磁针，可在枢轴上自由活动直到与地球磁场在一条线上 A device used to determine geographic direction, usually consisting of a magnetic needle or needles horizontally mounted or suspended and free to pivot until aligned with the magnetic field of Earth.
自从我们的祖先发明指南针以来，将近两千年过去了。 Nearly two thousand years have passed since our ancestors invented the compass.
你知道是谁发明的指南针吗？ Do you know who invents the compass?
倘若没有指南针，可利用星辰引路。 If you haven't a compass, use the stars to guide you.
