The wonderful piece of music is so difficult ————（play）

piece这里是什么意思?The most wonderful piece of machinery on show was Nasmyth's steam hammer. The wonderful piece of music is so difficult ————（play） the most wonderful piece of machinery on show was Nasmyth's steam hammer.请问piece,启什么作用,如何去理解 i was listenning to () wonderful piece of music when there was() knock on the doorA a ;an B /;a C a;a D the;the the piece of用法 How dou you like the concert given by the pianist?Wonderful,____one piece of the music wasn't___quite well.Aand,play Bthough,played Cbecause,played Dso that,playing 选哪个. a piece of the American the best piece of advice Cherish the wonderful time now! Lucy plays the piano_____(wonderful). Is the wheel wonderful是什么意思 This piece of music is ____wonderful piece I'v ever heard.改为同意句原句是I have never heard such a piece of wonderful music this piece of music is wonderful(改为感叹句）怎么改? a most wonderful film与the most wonderful film区别 The English Evening was wonderful.wonderful划线 做3句 The beaches were wonderful划线部分提问 wonderful划线 wonderful wonderful.