Repeat starting pianissimo and making a crescendo to forte and then a diminuendo 重复长音练习，弱进渐强至强音然后渐弱。
3.
An appalling plash within two yards of him was followed by a loud , rushing sound , diminuendo , which seemed to travel back through the air to the fort and died in an explosion which stirred the very river to its deeps 距离他两码的位置发出可怕的激溅声，随后响亮急速的声音渐渐微弱，声音似乎是向后穿过天空到达堡垒并在爆炸声后平息，它的威力足以震惊整条河。
4.
The prominence of the violin in western music rests on its singular qualities , among them an expressiveness ranging from soft lyricism to extreme dramatic excitement , a soulful and sensitive timbre , crescendos and diminuendos unequaled by other instruments 小提琴是一种表情丰富的弦乐器，它除了能表达优美如诗般的情感外，亦能拉奏出澎湃扣人心弦的气势。在大部份的管弦乐曲中，小提琴均担当一个相当重要的位置。
