clean 打扫,扫除,清理
spread quickly 迅速传播
look around 环视
search thoroughly 彻底搜寻
remove 带走,移走
clear, drive, or convey with relentless force:
席卷：无情地清除、赶走或运走：
The flood waters swept away everything in their path.
洪水一路上卷走了所有的东西
win 赢得（比赛或竞赛）每一阶段的胜利：
swept the World Series.
在世界职业棒球锦标赛中大获全胜
extend gracefully, especially in a long curve:
蜿蜒：尤指呈长弧形状优美地延展：
The hills sweep down to the sea.
山峦蜿蜒至海
