crowd的用法及语法特点
1. 表示“人群”“观众”等，为集合名词，若用作主语，谓语用单数（看作整体时）或复数（考虑其个体成员时）均可。如：
The crowd was orderly and quiet. 人群很有秩序，也很安静。
The crowd were running in all directions. 人群往四面八方跑去。
The crowd move(s) on, and no one tries to stop it. 人群向前移动，谁也没试图阻止。
同样地，若使用相应的代词，也可根据单数或复数。如：
The crowd howled its displeasure. 人群怒吼着表示不满。
The crowd cheered their favorite horse. 众人为他们喜爱的马加油。
强调人数多时，可用复数形式。如：
There were crowds of people waiting to get in. 有许许多多的人在等着进去。
2. 用作动词，表示“聚集”“挤满”“涌动”，可用作及物或不及物动词。如：
Shoppers crowded the streets. 买东西的人挤满了大街。
He managed to crowd into the train. 他总算挤上了火车。
People crowded round to get a better view. 人们争相围观。
常用结构 be crowded with。如：
The hall was crowded with people. 大厅挤满了人。
The exhibition was crowded with visitors. 展览会挤满了参观的人。
3. 派生形容词 crowded 意为“拥挤的”。如：
The room soon became crowded. 房间很快挤满了人。
When it is wet the buses are crowded. 天下雨时公共汽车就很拥挤。
但是，汉语的“拥挤的交通”不能直译为 crowded traffic，而是用 busy [heavy] traffic表示。如：
He was late owing to the very heavy traffic. 他迟到是因为交通拥挤。
The cyclist weaved his way through the busy traffic. 那个骑脚踏车的人在拥挤的车流中迂回穿行。