2HELPa piece of equipment or a skill that is useful for doing your job 工具〔指职业上有用的器具或技能〕
Television is an important tool for the modern teacher.
电视是现代教师重要的工具。
These books are the tools of my trade (=the things I need to do my job).
这些书是我工作中的必备工具。
3USE A PERSONsomeone who is used unfairly by another person and who has to do things they do not really want to do – used to show disapproval 〔被人利用的〕工具〔含贬义〕
tool of
The king was merely a tool of the military government.
国王只是军政府的工具。
4.informal not politeHBH a man’s penis (=sexorgan) 阴茎,鸡巴