adj.有细毛的;
v.堆起( pile的过去式和过去分词 );堆叠;放置;装入;
例句:
After the game, crowds of football fans piled out.
球赛结束后, 成群的足球迷涌出了赛场.
The bus stopped, and crowds of passengers piled off.
公交车停下, 成群的乘客下车离去.
The crowd piled into the bus in a few seconds.
那群人几秒钟内就挤进了公共汽车.