1A log which when removed or dislodged enables the loosening of a logjam.
2Computing a record of every keystroke made by a user, typically produced by means of a keylogger.
Mid 19th century.
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。