地球 + 轨道
The noun 轨道 (guǐdào) means 'orbit' or 'track,' combining 轨 (rail) and 道 (path). It is used in both scientific contexts like planetary orbits and everyday contexts like railway tracks or career paths.
卫星已经顺利进入了地球轨道。
Wèixīng yǐjīng shùnlì jìnrù le dìqiú guǐdào.
The satellite has successfully entered Earth's orbit.
这条铁路的轨道全长超过两千公里。
Zhè tiáo tiělù de guǐdào quán cháng chāoguò liǎng qiān gōnglǐ.
The track of this railway stretches over two thousand kilometers in total length.
他的人生终于回到了正常的轨道上。
Tā de rénshēng zhōngyú huí dào le zhèngcháng de guǐdào shàng.
His life has finally gotten back on the right track.