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- China to the ancient timer, “hourglass” for the prototype, the level of 9 different set of stainless steel glass column, “hourglass”, a parabola distribution constitutes a planet track. 以中国古计时器“沙漏”为原形，9根高低不一的不锈钢镶玻璃立柱“沙漏”，呈抛物线分布，构成行星轨迹。
- Our pilotless rocket enters the track of the earth. 我们把一个无人驾驶的火箭送入了地球的轨道里。
- Saturn is the planet sixth in order from the sun. 土星是依次离太阳的第六颗行星。
- Mars is the fourth planet in order from the sun. 火星是太阳系的第四颗行星。
- This rough track will soon be a metalled road. 这条坑坑洼洼的路不久就要铺上碎石了。
- I'm trying to track down my old Aunt Maud. 我正试图寻找到我那年迈的婶婶莫德。
- The cyclist went at full sail along the track. 自行车手沿着跑道全速前进。
- Bill has a feeling he is on a fast track. 比尔感觉到他正快速迈向成功。
- The new race track is nearly six miles in extent. 这条新跑道将近六英里长。
- An evil influence of a star or planet. 恒星或行星邪恶的影响
- John bears the bell in all track events at school. 约翰在学校里的各个径赛项目中都赢得第一名。
- I'm on the track of a valuable painting. 我在追寻一幅珍贵的油画。
- Keep track of the time you actually travel. 把你旅行的实际时间记录下来。
- Signals control each section of the railway track. 各种信号控制着铁路轨道的每个部分。
- A locomotive pounded down the railway track. 一辆机车沿着铁道隆隆地驶去。
- The satellite of Neptune that is third in distance from the planet. 海王卫二海王星的卫星，离该行星的距离处于第三位
- I like to watch field and track events. 我喜欢观看田径比赛。
- The satellite of Saturn that is fifth in distance from the planet. 埃庇米修斯距离土星第五远的土星卫星
- We have to keep track of every cent we spend. 我们得记下我们花的每一分钱。
- The satellite of Uranus that is second in distance from the planet. 天卫一距离天王星第十四远的天王星卫星
