masterwork可数吗

　　例句：

　　The act can be at this time can be a masterwork after years study.

　　在多年的研究之后，此时的性生活能够是大师的手笔。

　　These various sceneries are all the masterwork of nature.

　　这一幅幅的美景无一不是大自然的杰作。

　　For the creation of a masterwork literature two powers must concur, the power of the man and the power of the moment.

　　文学名著的横空出世必须同时借助两种力量：人的力量和时代的`力量。

　　We appreciate a masterwork of his.

　　我们在欣赏他的佳作。

　　The landscape looks forsaken, with hills, sky and forest forming a single Gray meld, like the wash an artist paints on a canvas before the masterwork.

　　四周的景色一片凄凉，小山、天空和森林灰蒙蒙的，就像画家的名作画成之前画布上的底色一般。