drop like flies
大量死亡或倒下
口语·夸张表达，表示大量死亡或失败
英文释义
to fall down or die in large numbers; to weaken or decrease rapidly
例句
During the heatwave, people were dropping like flies from dehydration.
典故来源
源自苍蝇在寒冷或杀虫剂作用下大量死亡的景象，比喻人或事物快速、大量地倒下或消失。