Definition: a thing that helps you to do a particular activity Level: B2
计算机是现代科学家必不可少的工具。
Computers are an essential ___tool for modern scientists.
根据我的个人经验，我也可以说个人电脑是一个非常棒的工具。
From my personal experience, I can also say that a personal computer is an amazing ___tool.
锤子是木工的基本工具。
A hammer is a basic ___tool for carpentry.
