tool [noun]
1. something that you hold in your hand and use to do a particular job
2. a piece of equipment or a skill that is useful for doing your job
⇒特定の作業を行うために手に持って使う何か
⇒仕事に役立つ equipment や技術の一つの要素
equipment [noun]
the tools, machines, clothes etc that you need to do a particular job or activity
⇒tools, 機械(s)、服装(s)など特定の作業や活動を行うために必要なもの
instrument [noun]
a small tool used in work such as science or medicine
⇒科学や医学で用いる小さな tool
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