if people are dropping like flies, large numbers of them are dying or becoming ill or injured within a short period of time.
The heat was overwhelming and people were dropping like flies.
英语词组固定搭配大全包含18674条英汉双解词组，基本涵盖了全部常用英文词组、短语的翻译及用法，是英语学习的有利工具。