observing location
观察位置
以上为机器翻译结果，长、整句建议使用 人工翻译 。
A navigator can know the latitude of his ship by observing the location of stars, where the sun rises in the morning and sets in the evening, and what time of year it is.
VOA: special.2010.07.14
应用推荐
模块上移
模块下移
不移动