There are some fascinating add-ons that aren 't pianos .

软件里有些有意思的扩展组件，不是钢琴的。

After the event the pianos are donated to local schools and community groups .

活动后，钢琴将被捐献给当地的学校和社区团体。

The wire inside pianos has undergone significant changes between the piano 's origins in the early 1700s until the late 1880s .

从钢琴诞生的17世纪早期直到19世纪80年代，钢琴内部的琴丝经历了重大的改变。

But I think the annual sale of 300 pianos for a sole distributorship in canada is rather conservative .

不过我认为对加拿大的独家经销来说，年销售量300架钢琴未免太过保守了。

When wolfgang mozart sat down to perform his masterpieces to audiences , he tapped out the notes on a much different instrument than most pianos used today .

当沃尔夫冈莫扎特坐在钢琴前向他的听众们演奏自己的著作时，他是在一个和我们现在使用的大多数钢琴都不同的乐器上弹奏音符。