1. 他7歲時就會鋼琴作曲。
   He was composing at the piano at the age of seven.
2. 為鋼琴調(diào)音需要專門技能。
   It takes skill to tune a piano.
3. 這位歌唱家由她妹妹擔任鋼琴伴奏。
   The singer was accompanied by her sister at the piano.
4. 演唱者由他的學生擔任鋼琴伴奏。
   The singer was accompanied at the piano by his pupil.
5. 硬幣滾到鋼琴的下面了。
   The coin rolled underneath the piano.
6. 她在學彈鋼琴。
   She is learning to play the piano.
7. 他立刻停止了彈鋼琴。
   He stopped playing the piano at once.

鋼的英語翻譯：

琴的英語翻譯：