trace这个单词做痕迹解释时可数么

[count or uncount] a slight sign that someone has been present or that something has happened:
The intruders were careful not to leave any trace behind them.
trace of:All traces of the damage had vanished.
disappear/vanish without a trace:She was seen leaving the house,then vanished without trace.
可数或不可数都可以
做微量时可数

trail：它的本意是拖在后面的意思，是指根据痕迹trace：它的本意.追寻、追溯、回溯，是根据事件影响的结果，如战争留下的

给你一个超专业的解释： trail：它的本意是拖在后面的意思，是指根据痕迹trace：它的本意.追寻、追溯、回溯，是根据事件影响的结果，如战争留下的