寻找轨迹

sheep track───羊道

sheep tracks───羊的足迹

sea wrack───海藻；被浪冲上岸边的海草

seed tray───播种盘

seed trays───播种盘

sheeptrack───羊排

spur track───支路；（铁路的）[铁路]支线

So his whole life is a helpless but stubborn carpolite to seek its own track.───那么在他一生就像是一个身不由己、却顽强的寻找自己轨迹的石子。

Therefore, to make a thorough research of the mode of jovial mentality brought by the usage of the products, and to seek for the track of the design of usage-act-mode, will be an affirmative task.───因此，深入研究使用产品过程中产生愉悦心理的模式，寻求基本使用动作组合模式设计途径成为不可忽视的课题。