tool
US /tuːl/
UK /tuːl/

1.
工具, 器具
a device or implement, especially one held in the hand, used to carry out a particular function.
:
•
He used a hammer as a tool to fix the broken chair.
他用锤子作为工具来修理坏掉的椅子。
•
A computer is an essential tool for modern work.
电脑是现代工作必不可少的工具。