In the process of multiple target tracking, sonar usually loses track of cross-moving targets.

为解决在多目标跟踪过程中，声纳存在交叉运动目标失跟问题。

If he momentarily loses track of it, the anxiety flares up again, and the diffuse discomfort of the topic returns.

如果他某个时刻失去了线索，焦虑会再一次爆发，这个话题所弥漫的不舒服的感觉又会再回来。

For example, an application that helps users keep track of car mileage loses focus on this functionality if it also keeps track of car dealer locations.

例如，一个记录汽车里程的程序如果不把重心放在这个功能上反而记录汽车经销商的位置。