小不娃娃
轨道[guǐ dào]track; orbit; trajectory; path; pathway举例:1你将在8号轨道找到你的列车。You'll find your train at track 8. 2卫星被射入环绕月球的轨道。The satellite was launched into orbit around the moon. 3生产已经走上轨道。Production has already been put on the right track.
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