四分音

例句：

1. 1. The teacher asked us to count the number of quarters in a dollar bill.
   老师让我们数一数一美元钞票里有多少个四分之一。
2. 2. The conductor played the first eight notes on the piano.
   指挥家在钢琴上演奏了第一八音符。
3. 3. The composer wrote a piece for four quarters of a minute.
   作曲家写了一首曲子，时长为四分之一分钟。