练琴的英文：
play the piano

参考例句：

"He practised all the time, focusing on the keys the way other children focus on ice cream."
他利用一切可能的时间练习,他练琴时的专注不亚于其他孩子对冰淇淋的迷恋。

Practicing is tiresome, but stick with it and some day you will become a good pianist.
练琴是一件辛劳的事,但如果你坚持下去,你将来会成为一名很好的钢琴演奏家。

play是什么意思：
v. 装扮；戏弄；参加；同…比赛；玩；打出；发挥作用；演奏；播放；扮演
n. 戏剧，剧本；比赛；玩耍，游戏

represent a play
再上演某剧

play around with
在一起厮混|玩弄|戏弄

Play havoc with
搅乱,破坏

He played a small part in the play.
他在这出戏里演一个小角色。

If you are playing cards, you are playing a game using cards.
纸牌游戏就是用纸牌来玩的一种游戏。

piano是什么意思：
n. 钢琴

The piano is sharp.
钢琴的音偏高了。

A piano trio,eg for piano,violin and cello
钢琴三重奏(如由钢琴、小提琴及大提琴组成的).

A piano tinkled gently in the background.
背景音是悠扬的钢琴声。

the piano was jarringly out of tune.
钢琴走了调，声音很刺耳。

Arden is death on the piano.
阿登擅长弹钢琴