cinder的复数形式怎么拼写？

n.煤渣，炭渣，煤渣路，煤渣跑道...

The cakes were burnt to a cinder.饼烤猵胡了.But he took off his sweater and they began jogging slowly around the cinder track.不过,他还是脱了厚毛衣,两人开始沿煤渣跑道慢慢地晃着跑起来.You've burnt the toast to a cinder , ie so that it is hard and b...

cinder的音标：cinder的英式发音音标为：['sɪndə(r)]cinder的美式发音音标为：['sɪndɚ]...