A key is the part of a pianoforte that you touch to make music.
琴键是钢琴上用手指敲击的部件，它能使钢琴发出乐音。
He took some music from a chair near the pianoforte , and turning to emma, said.
这时，他从钢琴旁的椅子上拿了一些乐谱，朝爱玛转过脸来说。
He took some music from a chair near the pianoforte , and turning to emma, said.
这时，他从钢琴旁的椅子上拿了一些乐谱，朝爱玛转过脸来说。
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