piano的复数以o、s、x、ch、sh结尾的在词尾加es，好比potatoes、tomatoes。可是有些以o结尾的外来词或缩写词的复数情势只加s，别的若是字母o前面是元音字母也只加s。

由于piano是外来词，所以直接加s。

例句：These pianos are of different widths.

翻译：这些钢琴的宽度是纷歧样的。

piano的复数例句:

These pianos are of different widths.

这些钢琴的宽度是纷歧样的。

The concert opened with a lively performance of a piece for two pianos.

音乐会以两架钢琴出色地表演起头。

Pianos which have a pleasant timbre are of higher price.

音品好的钢琴价钱常常也比一般的高。

The pianos the other shop will be cheaper,but not as good.

另外一家店的钢琴会更廉价，但质量却没这家的好。

The pianos act as a blank canvas for everyone else's creativity.

这些陌头钢琴是一块油画布，任每一个人阐扬其创意。

In the house there are five pianos.

屋中有五架钢琴。

Music from pianos inside the offices filled the air.

处处都飘零着从办公室里传来的钢琴吹奏的音乐。

There are five pianos in the room.

房间里有五架钢琴。