An investigation into a crime, usually seeking to identify the offender and build a legal case against him or her; also as a mass noun.
Late 18th century; earliest use found in Robert Heron (1764–1807), journalist and author.
英汉双解词典包含464360条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。