I find the best tool for the purpose is a pair of shears.

我发现做这件事最得力的工具是一把大剪刀。

Writing is a good tool for discharging overwhelming feelings…

写作是宣泄强烈感情的好方法。

The video has become an invaluable teaching tool.

录像已经成为非常有用的教学手段。

The threat of bankruptcy is a legitimate tool to extract money from them.

破产威胁是从他们那里索得钱款的合法手段。

He became the tool of the security services. [+ of]

他成了安全部门的工具。

They're here to learn the tools of their trade from their American colleagues.

他们来这里向美国同事学习行业技术和技能。

Black-leather jackets and tattoos are the standard tools of the trade for heavy-metal musicians.

黑皮夹克与纹身是重金属乐手的标准行头。