bell

彰化縣埤頭鄉中和國小

If a player knows the answer, he or she rings the bell to let the teacher know. 

如果選手知道答案，他可以按鈴讓老師知道。

The player who rings the bell first gets to tell the teacher the answer. 

按鈴的選手可以先跟老師說出答案。