string instrument

彰化縣鹿港鎮鹿鳴國中 

String instruments are any musical instruments that are played with a bow. 

弦樂器是用弓演奏的任何樂器。

Some examples of string instuments are the cello and the violin. 

弦樂器的一些例子是大提琴和小提琴。

彰化縣田中鎮新民國小

The students perform string instruments on stage.

學生們在舞台上演奏弦樂器。

The students have been practicing their string instruments for a long time. 

學生們已經練習弦樂器很久了。