tornado n.龙卷风

crowd n. 人群

half off 打五折
Do you realize that all of these shirts are half off?   
你知道这些衬衫都卖半价了吗？

chaos n. 混乱, 无秩序

shove v. 推挤, 撞
He shoved her out of the way.
他把她推到了一边。