n. the pursuit (of a person or animal) by following tracks or marks they left behind
a. 牵引的；后面的；被拖动的；蔓延的；拖尾的
1. The dog was trailing behind its owner during the walk.
这只狗在散步时跟在主人后面。
2. She was trailing her friends in the race but kept pushing forward.
她在比赛中落后于朋友们，但仍然努力向前。
3. The trailing vines added beauty to the garden.
垂挂的藤蔓为花园增添了美丽。