債券

The stethoscope is a medical instrument. 聽診器是一種醫(yī)療器械。

This instrument monitors the patient's heartbeats. 這臺儀器監(jiān)聽病人的心跳。

The king signed the instrument of abdication. 國王簽署了遜位的文告。

A similar board used as a percussion instrument. 敲擊板用作打擊樂器的一種類似的板

This scientific instrument suffered severely. 這部科學(xué)儀器受到嚴(yán)重?fù)p壞。

Language is an instrument for communication. 語言是交際的手段。