提示：点击例句中的单词，就可以看到词义解释

Neither agency tracks sales in the luxury market .

两家代理公司均未跟踪豪华楼盘市场的销量。

People cross railway tracks in dharavi on feb. 2 .

2月2日，人们穿过铁路轨道。

The tracks also cast light on what the ediacarans actually were .

这些足迹也使我们了解了埃迪卡拉动物到底是什么。

Football fans dislike running tracks , so spurs would ditch it .

足球迷们并不喜爱跑道，因此热刺队将废除跑道。

Whoever designed flame , they are now trying to cover their tracks .

不论是谁设计了火焰病毒，他们现在都试图掩盖自己的踪迹。