scythe       
 noun [ C ] uk/saɪð/ us/saɪð/
 (尤指割草用的)长柄大镰刀
a tool with a long, sharp, curved blade and a long handle held in two hands, used especially to cut long grass
 Compare: sickle
 scythe         
verb uk/saɪð/ us/saɪð/
 [ T ]用长柄大镰刀割 
to cut something using a scythe
  [ I + adv/prep ]高速穿过 
to move very quickly through a group of people or things
  The racing car left the track at 120 mph and scythed through the crowd of spectators, killing ten. 赛车以每小时120英里的速度脱离跑道,冲进观赛人群,致使10人丧生。