Although Beethoven could sit down and compose easily, his really great compositions did not come easily at all. They cost him a great deal of hard work and he always found it hard to satisfy himself.的翻译：什么意思？中文翻译英文，英文翻译中文，怎么说？

虽然贝多芬可以坐下来撰写容易，他的真正伟大的作品没有来之不易所有。他们花费了他大量的辛勤工作，他总是难以满足自己。