instrument可数吗?

instrument是可数名词，意思是仪器；工具；乐器；手段；器械。复数形式是 instruments .

例句

Is he learning an instrument?

他在学习演奏乐器吗？

All the instruments are working fine.

所有的仪器都运转良好。

The instrument is beautifully made in brass.

这个乐器是用黄铜精致铸造成的。

He draws a unique full sound from the instrument.

他用乐器奏出了独特圆浑的音调。

Others were quietly tuning up their instruments.

其他人正安静地为他们的.乐器调音。

The drum is one of the oldest musical instruments.

鼓是最古老的乐器之一。