instruments
A musical instrument is an object such as a piano, guitar, or flute, which you play in order to produce music.
Learning a musical instrument introduces a child to an understanding of music.
学习一种乐器能引导孩子对音乐有所了解。
An instrument is a device that is used for making measurements of something such as speed, height, or sound, for example, on a ship or plane or in a car.
The design of crucial instruments on the control panel will have to be improved.
控制板上关键仪器的设计必须要改进。
Something that is an instrument for achieving a particular aim is used by people to achieve that aim.
The veto has been a traditional instrument of diplomacy for centuries.
数世纪以来,否决已经成为一种惯用的外交手段。