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GPS卫星如何精确定位你的位置？

Your phone or device receives timing signals from at least four orbiting GPS satellites moving at 14,000 km/h.
Each satellite broadcasts its exact position and the precise time the signal left—using atomic clocks accurate to nanoseconds.
Because radio signals travel at known speed, your device calculates distance to each satellite by measuring signal delay.
With distances from three satellites, geometry narrows your location to two possible points on Earth’s surface.
The fourth satellite resolves ambiguity and corrects for tiny clock errors inside your device.
Ground stations constantly monitor satellite orbits and upload correction data to maintain meter-level accuracy.
Newer systems like Galileo and BeiDou use additional frequencies to reduce interference from buildings or trees.
Self-driving cars combine GPS with inertial sensors and real-time maps to navigate safely in tunnels or urban canyons.

听 → 读 → 学表达 → 懂 → 今天会说这一句 → 跟读录音 → 自己说一句。

The fourth satellite resolves ambiguity and corrects for tiny clock errors inside your device. 第四颗卫星消除位置歧义，并校正设备内部时钟的微小误差。
Ground stations constantly monitor satellite orbits and upload correction data to maintain meter-level accuracy. 地面站持续监测卫星轨道，并上传修正数据，以保持米级定位精度。
With distances from three satellites, geometry narrows your location to two possible points on Earth’s surface. 结合三颗卫星的距离数据，几何方法可将你的位置缩小至地球表面两个可能点。

这篇中文题目最接近哪一句？ GPS卫星如何精确定位你的位置？一次学校运动会的通知一份超市购物清单

课文第一句的意思更接近？你的手机或设备接收至少四颗以每小时14000公里速度运行的GPS卫星发来的定时信号。今天学校放假了。请把窗户打开。

这一课主要在讲什么？（看英文标题） How Do GPS Satellites Know Your Exact Location? How to cook noodles A maths worksheet

The fourth satellite resolves ambiguity and corrects for tiny clock errors inside your device.

The fourth satellite resolves ambiguity and corrects for tiny clock errors inside your device.

第一版：录下来、回听、再听标准音。系统打分以后再加。

用今天的表达，自己说一句。

例子：The fourth satellite resolves ambiguity and corrects for tiny clock errors inside your device.